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NAME

       fd - file & directory maintenance tool

SYNOPSIS

       fd  [ -abCefhiklmNnPrSsTtuvx ] [ -NAME=value ] [ directory [ directory2
       ...  ]]
       fdsh [ -abCcefhiklmNnPrSsTtuvx ] [ args ]

DESCRIPTION

       Fd is a file & directory  maintenance  tool  considered  for  the  text
       terminals  on  general  UNIX.   It  aims  for a clone of the same named
       utility which is made for the  PC/AT  compatible  machine  and  PC-9800
       series.  In fact, it is upper compatible functionally.

       Fd  shows  the  browser  screen listing files when you have invoked it.
       You can input some key which is bound each command, to execute  various
       operations.

       (In  the  following  description,  (UNIX)  means  that the operation is
       implemented only on UNIX version and not effective on  MS-DOS  version.
       As  well  as  it, (DOS) means that the operation is implemented only on
       MS-DOS version.)

   Options
       The command line option is used for setting internal  shell  operations
       and  setting  the  internal variables described below.  You can use any
       variable name as the internal variable, but fd can  accept  only  those
       which  are described in the below section of ENVIRONMENT VARIABLES.  If
       you specify directory, the current directory is moved to the  directory
       initially.   If  you  specify  directory2 ..., the split window mode is
       invoked, and the current directories of the  supplemental  windows  are
       moved to the each directory.

       The following options are available for the internal shell.

       -c string
              Commands  described by string are executed and exit immediately.
              It is effective only when it is invoked as fdsh.

       -i     If the -i flag is present or if the standard input/output  is  a
              terminal, the shell is the interactive shell.

       -s     If  the  -s flag is present or if no args is specified, commands
              for the shell are read from the standard input.   Any  remaining
              argument specifies the positional parameter.

       -r     The  shell  is  a restricted shell.  Specifically, the following
              operations are disallowed.
                 changing the current directory
                 setting the value of $PATH, $SHELL and $ENV
                 specifying command names include /
                 redirecting output (> and >>)
                 IN_DIR         OUT_DIR        LOG_TOP
                 LOG_DIR        ATTR_FILE      COPY_FILE
                 MOVE_FILE      DELETE_FILE    DELETE_DIR
                 RENAME_FILE    MAKE_DIR       WRITE_DIR
                 TREE_DIR       BACKUP_TAPE    EDIT_FILE
                 UNPACK_FILE    PACK_FILE      LOG_TREE
                 COPY_TREE      MOVE_TREE      UNPACK_TREE
                 FIND_DIR       ATTR_DIR
              When invoked as rfd or rfdsh, it becomes this  restricted  shell
              automatically.

       -l     The shell is a login shell.

       -N     Reading the initial configuration files is omitted.

       In  addition, the options described below in the description of set the
       builtin command are available.

   Screen Layout
       Fd has the 3 major screen modes.  In the browser screen, you can select
       from  the  file  list and execute each command.  In the archive browser
       screen, files in the archive file are listed separately  by  directory,
       and  you can browse as well as the browser screen.  In the tree screen,
       you can move on the directory tree and select the directory path.

       In all screen modes, each 3 lines on the top/bottom of the  screen  are
       used  for  the  various  information  of fd.  The top information lines
       sometimes become 4 lines.  The screen layout is the following.

       line#     Description

       1         The title line.  The clock at the right end is updated  every
                 10 seconds.

       2         The information line.  It displays information in this order:
                 the current page (and the total pages), the number  of  marks
                 (ant  the  total  marks), the sorted type, the pattern string
                 for file search.

       3         The path line.  It  displays  the  fullpath  of  the  current
                 directory.   In  the  archive browser screen, it displays the
                 fullpath of the archive file and  the  current  path  in  the
                 archive.

       2 (optional)
                 The  file  size information line.  It displays the total size
                 of the marked files in the directory (and the total  size  of
                 all  files), the total capacity and the free size of the file
                 system including the current directory.  This line appears by
                 SIZEINFO  the  internal  variable setting.  When this line is
                 displayed,  The  information  line  and  the  path  line  are
                 displayed 1 line under each.

       bottom - 2
                 The stack line.  It displays files temporarily which you push
                 in stack, when arranging files.

       bottom - 1
                 The function line.  It displays the  operations  of  function
                 keys.

       bottom    The  status  line.  It displays the status of the file on the
                 cursor position.  It  also  displays  warning  messages  when
                 command is executed with some troubles.

   Internal Commands
       You  can use the following internal commands on fd.  While any user can
       change the key binding for these  internal  commands,  here  shows  the
       default  key  binding.  The identifier is used when it is executed from
       the command line of EXECUTE_SH command, and when the user  defines  the
       key binding.

       Identifier          Command                       Key

       CUR_UP              Move a cursor up              Up
       CUR_DOWN            Move a cursor down            Down
       CUR_RIGHT           Move a cursor right           Right
       CUR_LEFT            Move a cursor left            Left
       ROLL_UP             Turn ahead to the next page   PageDown
       ROLL_DOWN           Turn back to the prev. page   PageUp
       CUR_TOP             Move a cursor top             Beg(<)
       CUR_BOTTOM          Move a cursor bottom          Eol(>)
       FNAME_RIGHT         Shift right a filename        (
       FNAME_LEFT          Shift left a filename         )
       ONE_COLUMN          Change layout into 1 column   1
       TWO_COLUMNS         Change layout into 2 columns  2
       THREE_COLUMNS       Change layout into 3 columns  3
       FIVE_COLUMNS        Change layout into 5 columns  5
       MARK_FILE           Mark a file                   Tab
       MARK_FILE2          Mark and move down            Space
       MARK_FILE3          Mark and move in a page       ^Space(^@)
       MARK_ALL            Mark all files                Home(+)
       MARK_REVERSE        Mark all files reversely      End(-)
       IN_DIR              Change to a sub directory     Return
       OUT_DIR             Change to a parent directory  Bs
       LOG_TOP             Change to a root directory    \
       REREAD_DIR          Reread the current directory  ^L
       PUSH_FILE           Push a file to the stack      Del(])
       POP_FILE            Pop a file from the stack     Ins([)
       LOG_DIR             Change to a logical directory F1(l)
       EXECUTE_FILE        Execute a file                F2(x)
       COPY_FILE           Copy a file                   F3(c)
       DELETE_FILE         Delete a file                 F4(d)
       RENAME_FILE         Rename a file                 F5(r)
       SORT_DIR            Sort the current directory    F6(s)
       FIND_FILE           Find files                    F7(f)
       TREE_DIR            Display the tree screen       F8(t)
       EDIT_FILE           Edit a file                   F9(e)
       UNPACK_FILE         Unpack a file                 F10(u)
       ATTR_FILE           Change a file attribute       F11(a)
       INFO_FILESYS        Display a file system info.   F12(i)
       MOVE_FILE           Move a file                   F13(m)
       DELETE_DIR          Delete a directory            F14(D)
       MAKE_DIR            Make a directory              F15(k)
       EXECUTE_SH          Execute a child process       F16(h)
       WRITE_DIR           Write a displayed directory   F17(w)
       BACKUP_TAPE         Backup into a tape            F18(b)
       VIEW_FILE           View a file                   F19(v)
       PACK_FILE           Pack a file                   F20(p)
       LOG_TREE            Change directory with tree    L
       COPY_TREE           Copy a file with tree         C
       MOVE_TREE           Move a file with tree         M
       UNPACK_TREE         Unpack a file with tree       U
       FIND_DIR            Find a file recursively       F
       ATTR_DIR            Change attributes recursively A
       SYMLINK_MODE        Switch the symbolic link mode S
       FILETYPE_MODE       Switch the file type symbol   T
       DOTFILE_MODE        Switch the dot file display   H
       FILEFLG_MODE        Switch the file flag display  O
       LAUNCH_FILE         Invoke the launcher           Return
       SEARCH_FORW         Search forward a file         ^S
       SEARCH_BACK         Search backward a file        ^R
       SPLIT_WINDOW        Split into the windows        /
       NEXT_WINDOW         Change to the next window     ^
       WIDEN_WINDOW        Widen the current window      W
       NARROW_WINDOW       Narrow the current window     N
       KILL_WINDOW         Kill the current window       K
       EDIT_CONFIG         Invoke the customizer         E
       HELP_MESSAGE        Display a help screen         ?
       QUIT_SYSTEM         Quit from fd                  Esc(q)

       WARNING_BELL        Bell for warning
       NO_OPERATION        Do nothing

       The  last 2 internal commands are used when you want change the default
       key binding to cancel.

   Internal Commands Description
       The detail  of  each  internal  command  is  the  following.   Internal
       commands with similar function are described together.

          Move cursor
               Move a cursor.

          Turn page
               Turn  to  the previous/next page, when files are not completely
               held in a screen.  Also if you try to move out of the page with
               Cursor move, the page will be turned.

          Move to the top/bottom
               Move  a  cursor  to  the top/bottom of the file list.  When the
               list is not held in a screen, the page is turned.

          Shift filename
               Shift the displayed string of filename on the cursor  position,
               when the filename is longer than the prepared column width.  It
               is displayed as shifted to  right/left  by  1  character.   The
               display of the status line is also shifted simultaneously.

          Change layout
               Change  the  number  of  columns  into  each  value.  There are
               usually 2 columns per screen.  As the column width per file  is
               changed  according  to  the  number  of  columns, the displayed
               information is also changed.

          Mark file
               Mark the file on the cursor  position.   You  cannot  mark  any
               directory.   [Space]  marks  and moves down a cursor.  [^Space]
               also marks and moves down a cursor, but doesn't turn the  page.
               [Home]   marks  all  the  files,  [End]  marks  all  the  files
               wildcard.  You must input the wildcard string whenever you push

               Marked files are used as the target  of  ATTR_FILE,  COPY_FILE,
               DELETE_FILE,   MOVE_FILE,  UNPACK_FILE  and  the  user  defined
               command macros.

          Change directory
               [Return] changes the current directory to the directory on  the
               cursor  position.   If  you  want  to  change  it to the parent
               directory, you should move a cursor to the  file  of  ".."  and
               push  [Return],  or  simply push [Bs].  [\] changes the current
               directory to the root directory.

          Push/pop file stack
               [Del] pushes the file on the cursor position to the file stack,
               and  temporarily  deletes  the  file from the file list screen.
               You can push files to the file stack up to 5 files.

               [Ins] pops the file from the file stack and insert  it  on  the
               cursor  position.   The  last pushed file is popped first.  But
               this order is expediently displayed in fd, and it is  reset  by
               Directory move.

          Redraw screen
               Redraw the file list screen by rereading the information of the
               current directory.   It  is  useful  when  some  other  process
               add/delete files, or when something break the screen display.

               Moreover,  when  you  use  the  terminal  which  doesn't  raise
               SIGWINCH signal at changing the screen size (like  kterm(1)  on
               HP-UX etc.), you must intentionally redraw after you change the
               screen size.

          Change logical directory (Logdir)
               Change the current directory to the  inputted  pathname.   When
               you  input the pathname which starts with '/', it means not the
               relative move but the absolute move.

               When you input the pathname ".", the pathname  of  the  current
               directory  is  adjusted  into absolute expression.  Except this
               case, the current directory always  is  shown  as  the  virtual
               pathname,  by  reason  of a link and so on.  When you input the
               pathname "?", you can move to the current directory when fd was
               invoked.   When you input the pathname "-", you can move to the
               last visited directory.

               Moreover, When you input the pathname "@" in floppy drive,  you
               can  move  to  the  directory  on  UNIX  file system, where you
               existed before moving to floppy drive.  (UNIX)

               (Note: This command is called as "Loddsk" in the original FD on
               MS-DOS,   which  is  short  for  "LOGical  DiSK  drive".   This
               "logical" means the drive name prefixed to pathnames, and it is
               virtually  named against "physical disk drive".  On UNIX, since
               "logical disk drive" never means pathname nor  directory,  this
               command  name  "Change logical directory" is not suitable.  But
               this name is expediently inherited from the original version.)

          Execute file (eXec)
               Execute the file on the cursor position with  some  parameters,
               as  the  child  process.   The  cursor position in command line
               exists after the filename in case of the executable  file,  and
               before  the  filename  except  it.   You  should  fill suitable
               parameters or command name in each case.   The  up/down  cursor
               keys can provide the command history which you executed before.

               On  MS-DOS  version,  the LFN form filename in the command line
               which is quoted with the  quotation  mark  "  is  automatically
               replaced  into  8+3  form  filename  before execution.  In this
               case, when there is the filename described by the string quoted
               with  ",  this string is always replaced into 8+3 form filename
               after deleting ", otherwise it is never replaced including ".

          Copy file (Copy)
               Copy  the  file  on  the  cursor  position  to  the   specified
               directory.  When the cursor position indicates a directory, its
               contents are copied recursively.  When some files  are  marked,
               the  target  is  not  the  file  on the cursor position but the
               marked files.

               When the same named file exists in  the  destination,  you  can
               select   the   operation   from   the  following:  "Update  (by
               timestamp)",  "Rename   (each   copied   file)",   "Overwrite",
               "Not_copy_the_same_name",  "Forward".  If you select "Forward",
               you should specify the directory as the destination to forward.
               All  files which have the same names are moved to the specified
               directory.

          Delete file (Delete)
               Delete the file on the cursor position.  No  directory  can  be
               deleted.   When  some  files  are marked, the target is not the
               file on the cursor position but the marked files.

               When you don't have write  permission  on  the  file,  you  are
               confirmed for security.

          Rename file (Rename)
               Rename  the  file on the cursor position.  You cannot rename to
               the same name as any  existent  file.   When  you  specify  the
               pathname  with  some  directory  name,  it is also moved to the
               directory.

          Sort file (Sort)
               Sort files in the current directory.  You can select the sorted
               type  from  the  following:  "fileName",  "Extension",  "Size",
               "Timestamp",  "Length   (of   filename)",   and   specify   "Up
               (incremental  order)"  or "Down (decremental order)".  When the
               sorted type before sorting is  the  one  except  "No  chg  (not
               sort)",  the choice will include "No chg".  When you sort after
               sorting another sorted type,  the  previous  sorted  result  is
               based in sorting.  This sorting has a priority except specified
               type, the directory is always precedes any file, except for the
               case  of  "No  chg".  In case of "Length", files which have the
               same filename length are sorted in order of their names.

               But this sorting is expediently displayed  in  fd,  and  it  is
               reset by Directory move.

          Find file (Find)
               Find  the  files  matching the wildcard, and display only them.
               The filename which starts with '.'  doesn't match the  wildcard
               which  starts with '∗' nor '?'.  If you want to cancel the File
               find, you should move the current directory,  or  do  FIND_FILE
               again and input a null line.

               When  the  current  directory  has  the  files  which  have the
               extension registered to associate with an archive browser,  the
               string  which  starts with '/' is used to find not the filename
               but the filename in archive files, and only the  archive  files
               which  contain  matched  files are displayed.  This function is
               available in the archive browser.

               After Find file, you can not do WRITE_DIR.

          Display tree screen (Tree)
               Display the directory tree based on the current directory.  You
               can  select  the  directory  in  the  tree  screen, to move the
               current directory.

          Edit file (Editor)
               Edit the file on the  cursor  position.   The  editor  is  used
               referring EDITOR the internal variable, or referring EDITOR the
               environment variable when the internal variable is undefined.

          Unpack file (Unpack)
               Unpack the  archive  file  on  the  cursor  position  into  the
               specified  directory.  In builtin configuration, you can unpack
               only  the  tar  file  and  its  compressed  file  and  the  LHa
               compressed  file.   You  can  describe  configurations  in  the
               initial configuration file to support archivers except these.

          Change attribute (Attr)
               Change the file access mode, the timestamp and the  owner/group
               of  the  file  on  the  cursor  position.   When some files are
               marked, the target is not the file on the cursor  position  but
               the marked files.  In case of the marked files, you must select
               the mode, the timestamp or the owner/group, before changing  it
               all together.

               When  you  input  the  mode,  cursor  keys move a cursor to the
               position you want to change, [Space] reverses the attribute  on
               the  position.   You  should  notice  that the attribute of the
               execution bit is not a binary toggle but a triple toggle, which
               includes  setuid  bit,  setgid bit and sticky bit respectively.
               If the target is the marked files, [m](Mask) will mask a bit on
               the cursor position with '*', to keep the value of the original
               file attribute.  When you  input  the  timestamp,  you  move  a
               cursor  to the position you want to change, and input a numeric
               value.  When you input the owner/group, you move  a  cursor  to
               the position for each name, and input a name or a ID value with
               [Space].  You can use the completion for  a  user  name  and  a
               group  name to input each name.  Finally, [Return] executes the
               change.  You can cancel with [Esc].  Be careful that the  limit
               check of date is not perfect.

               Moreover,   [a](Attr),  [d](Date),  [t](Time),  [o](Owner)  and
               [g](Group) move a cursor to the each beginning of input line.

               On the OS which has the attribute of file flags, you can change
               the  file  flags  as well as the mode.  In this case, [f](Flag)
               move a cursor to the beginning of input  line  of  file  flags.
               But  the  value  of flags which you can change is based on your
               permission.

          File system information (Info)
               Display the information of the specified file system.  When the
               inputted  pathname  is  not  the special file which indicates a
               file system, the information of the file system  including  the
               pathname is displayed.

          Move file (Move)
               Move   the  file  on  the  cursor  position  to  the  specified
               directory.  When the cursor position indicates a directory, the
               directory  itself  is  moved.   When some files are marked, the
               target is not the file on the cursor position  but  the  marked
               files.

               When  the  same  named  file exists in the destination, you can
               select  the  operation  as  well  as   COPY_FILE.    When   the
               destination  belongs  to  the  different  file system, copy and
               delete are just executed continuously.

          Delete directory (rmDir)
               Delete the directory on the cursor position recursively.   When
               the  directory in a symbolic link, only the link is deleted and
               the linked directory has no effect.

          Make directory (mKdir)
               Make the sub directory on  the  current  directory.   When  the
               inputted  sub  directory  string  includes  '/',  which  is the
               pathname delimiter, it goes  on  making  directory  recursively
               until the directory described by the string is finally created.

               When  you  input  the  pathname  which  starts  with  '/',  the
               directory is made not on  the  current  directory  but  on  the
               absolute path described.

          Execute child process (sHell)
               Execute  the  inputted  command string as the child process, by
               handling the internal shell.  You can refer the command history
               and  use  automatic  LFN  replacement, as well as EXECUTE_FILE.
               When you push only [Return] without any input, the  user  shell
               which  is  described  by  SHELL  the  internal  variable or the
               environment variable is invoked.   In  this  case,  you  should
               input "exit" to return to fd.  When the value of SHELL is fdsh,
               the internal shell is executed as the interactive shell.

               However, when there is the  same  command  name  as  a  builtin
               command  or  a  internal  command,  the  builtin command or the
               internal command are executed instead of the external  command.
               You  can refer the clause of `Builtin Commands' for the details
               of the builtin command.

          Write directory (Write)
               Write the displayed directory.  The gap between  files  on  the
               directory  entry is filled.  When it is executed after arranged
               by PUSH_FILE, POP_FILE and SORT_DIR, the result is written.

               When the displayed directory doesn't belong  to  the  hierarchy
               under  your  home  directory,  you  are  confirmed for security
               whether if any other user doesn't use the directory.  Since  it
               is  insecure,  you  cannot  write the NFS mounted directory and
               some special directories.

               If you execute the internal command  which  arranges  the  file
               order,  and then try to execute the internal command which will
               break that order, you will be confirmed whether  if  you  write
               the  directory  or  not,  just  before  the internal command is
               executed.  For this  function,  you  can  write  the  directory
               without  intentionally  executing this Directory write command.
               But when  the  displayed  directory  is  not  under  your  home
               directory, this confirmation is not done.

          Backup tape (Backup)
               Backup  the  file  on  the  cursor  position into the specified
               storage  device.   When  the  cursor   position   indicates   a
               directory,  all  of  its contents is backuped.  When some files
               are marked, the target is not the file on the  cursor  position
               but the marked files.

               Tar(1)  is  used  for  backup.   When  you specify the filename
               except special files indicates devices as input of  the  device
               name, the archive file is created with that filename.

          View file (View)
               View  the  file  on  the  cursor  position.   The pager is used
               referring PAGER the internal variable, or referring  PAGER  the
               environment variable when the internal variable is undefined.

          Pack file (Pack)
               Pack the file on the cursor position into the specified archive
               file.  When the cursor position indicates a directory,  all  of
               its  contents is packed into the archive file.  When some files
               are marked, the target is not the file on the  cursor  position
               but the marked files.

               According  to  the  extension of the inputted archive file, the
               associated archiver  is  automatically  selected.   In  builtin
               configuration,   you  can  pack  only  the  tar  file  and  its
               compressed file and the LHa compressed file.  You can  describe
               configurations  in  the  initial  configuration file to support
               archivers except these.

               When you use tar(1), you may sometimes be unable to pack a  lot
               of files at once, because of the maximum parameter length which
               can be given at once.   In  those  case,  you  can  create  the
               archive file with BACKUP_TAPE.

          Operations with tree
               [L], [C], [M] and [U] can make you select the pathname from the
               directory tree instead of the string input.  They  execute  the
               internal  command  equivalent  to LOG_DIR, COPY_FILE, MOVE_FILE
               and UNPACK_FILE, respectively.

          Find file recursively
               Find the file  matching  the  wildcard  recursively  under  the
               current  directory, and move the directory where the found file
               exists.  When the cursor position  indicates  a  directory,  it
               find  the  file  under  the  directory  on  the cursor position
               instead of the current directory.

               You will be confirmed for each matching  file  whether  if  you
               move  or not, and you can select [n](No) unless the target file
               is displayed.

          Change attributes recursively
               Change  attributes  the  directory  on  the   cursor   position
               revursively.   As  well  as  changing  attributes of the marked
               files,  you  must  select  the  mode,  the  timestamp  or   the
               owner/group,  before  changing  it  all together with each file
               under the directory.

               When you input the mode, you should notice that  the  attribute
               of  the  execution  bit  is  not a triple toggle but a 5-states
               toggle, which includes 'X' and '!'.  'X' means setting the  bit
               only  if  the  object is a directory or some execution bits are
               set.  '!'  also means unsetting the bit only if the object is a
               directory  or some execution bits are set.  [m](Mask) will mask
               a bit on the cursor position with '*', to keep the value of the
               original file attribute.

          Invoke launcher
               [Return]  executes  the operation according to the extension of
               the file on the cursor position,  unless  the  cursor  position
               indicates  a  directory.  In builtin configuration, the archive
               browser is registered with the tar file and its compressed file
               and  the  LHa compressed file.  You can describe configurations
               in the initial configuration file to register launchers  except
               these.

               When  the  file  on  the  cursor  position has the unregistered
               extension, it will behave as same as VIEW_FILE.  In the archive
               browser,  the registered launcher is available, so that you can
               invoke the archive browser recursively.

          Switch symbolic link mode
               In case  of  the  symbolic  link  file,  the  file  information
               displayed  in the file column and the status line shows not the
               status of its referential file  but  the  status  of  the  link
               itself.   It  switches  to  show  the status of the referential
               file.  (UNIX)

               In the mode of showing the  status  of  the  referential  file,
               'S'(Symbolic Link) is displayed on the left end of the function
               line.

          Switch file type symbol mode
               Switch to display the symbol which means the  file  type  after
               the filename in the file list, like as the display in -F option
               of ls(1).  It is toggle to switch if display the symbol or not.
               The each symbol means the following.
                    /    directory
                    @    symbolic link
                    =    socket

                    (MS-DOS version and the floppy drive)
                    /    directory
                    =    system file

               In  the  mode  of displaying the file type symbol, 'T'(Type) is
               displayed on the left end of the function line.

          Switch dot file display mode
               Switch not to display the file whose filename starts  with  '.'
               in  the  file  list.  It is toggle to switch if display the dot
               file or not.

               In the mode of not displaying  the  dot  file,  'H'(Hidden)  is
               displayed on the left end of the function line.

          Switch file flag display mode
               Switch  to  display  the  file  flag,  which exists in some OS,
               instead of the file mode on each file.  It is toggle to  switch
               if  display  the  file  flag  or  the  file  mode.  This is not
               available on any OS without the file  flag.   The  each  symbol
               means the following respectively.  (UNIX)
                    A    Archived
                    N    Nodump
                    a    system Append-only
                    c    system unChangeable (immutable)
                    u    system Undeletable
                    a    user Append-only
                    c    user unChangeable (immutable)
                    u    user Undeletable

               In  the  mode  of  displaying  the  file  flag,  'F'(Flags)  is
               displayed on the left end of the function line.

          Search file
               Search the current directory incrementally  for  the  filename,
               with moving a cursor.  When you execute this command, to switch
               to the search mode, a prompt appears in the function line.  You
               can  input  the filename in this prompt, and a cursor will move
               to the filename matching the string which is  already  inputted
               at that present.  [Esc] switches to the normal mode.

          Split window
               Split  the  current  window.   When  you  split a window in the
               normal non-split window mode, it will be the split window  mode
               in which the screen is split into 2 windows vertically.  In the
               split window mode, you can operate works individually  on  each
               window.   When you split a window in the split window mode, the
               current working window is split into 2 windows vertically.  You
               can make split windows up to 5.

          Change window
               Change  effective  window to the next in the split window mode.
               When the current window is the last, the first window  will  be
               effective.  In the non-split window mode, it is ineffective.

          Widen window
               Widen  the  current  window  size  in the split window mode, to
               narrow the next window size.  When the current  window  is  the
               last, the first window size will be narrowed.  In the non-split
               window mode, it is ineffective.

          Narrow window
               Narrow the current window size in the  split  window  mode,  to
               widen  the  next  window  size.  When the current window is the
               last, the first window size will be widened.  In the  non-split
               window mode, it is ineffective.

          Kill window
               Kill the current window in the split window mode, to join it to
               the previous window.  When the current window is the first,  it
               will  be  joined  to  the last window.  If the result number of
               windows is one, it will be the non-split window mode.   In  the
               non-split window mode, it is ineffective.

          Invoke customizer
               Invoke   the   customizer   which   interactively  changes  the
               configurations to be set up by the internal  variable  and  the
               builtin command.  While the configurations which is set up here
               is  reflected  immediately,   you   must   intentionally   save
               configurations  in the customizer if you want to reflect in the
               initial configuration file.

          Display help
               Display the list of the current key bindings and their  command
               descriptions.   When  the  list  is  not  completely  held in a
               screen, it prompts for every screen.

               In case of the circulated executable binary file,  this  screen
               shows  the  E-mail  address  of  the circulation manager in the
               function line.  Please contact here when something will happen.

          Quit (Quit)
               Quit from fd.

   Commands
       In EXECUTE_SH and the initial  configuration  file,  you  can  use  the
       internal  commands  described  above and the builtin commands described
       below, as well as  the  external  commands.   With  these  commands,  a
       connects the standard output of the previous command  to  the  standard
       the standard error output of the previous command to the standard input
       of  the next command.  The exit status of a pipeline is the exit status
       of the last command.  You can start a pipeline with !,  then  the  exit
       status  of a pipeline will be the logical NOT of the exit status of the
       last command.  Moreover, a command list can  consist  of  one  or  more
          ;    Execute commands sequentially.
          &    Execute commands synchronously, not waiting for  the  preceding
               pipeline to finish.  (UNIX)
          &&   Execute  the  following pipeline only if the preceding pipeline
               returns a 0 exit status.
               returns a non-0 exit status.
       In these command lists, a newline means as same as ;.

       The  input/output of each command in the command list can be redirected
       with the following redirectees.  These redirectees can be placed on any
       position in the command string.
          n<file    Redirect the input indicated by the file descriptor n into
                    the input from file.  If n is omitted, it is  regarded  as
                    the standard input is specified.
          n>file    Redirect  the  output  indicated  by the file descriptor n
                    into the output to file.  If n is omitted, it is  regarded
                    as  the  standard  output  is  specified.  If file doesn't
                    exist it is created, otherwise it is truncated to 0 length
                    before output.
                    even if -C option is set by set the builtin command.
          n>>file   Redirect the output indicated by  the  file  descriptor  n
                    into  the output to file.  If n is omitted, it is regarded
                    as the standard output  is  specified.   If  file  doesn't
                    exist it is created, otherwise output is appended to it.
          n1<&n2    Redirect  the  input  indicated  by the file descriptor n1
                    into the input indicated by the file descriptor n2.  If n1
                    is  omitted,  it  is  regarded  as  the  standard input is
                    specified.
          n1>&n2    Redirect the output indicated by the  file  descriptor  n1
                    into  the  output indicated by the file descriptor n2.  If
                    n1 is omitted, it is regarded as the  standard  output  is
                    specified.
          &>file    Redirect  both  the standard output and the standard error
                    output into the output to file.  If file doesn't exist  it
                    is  created,  otherwise it is truncated to 0 length before
                    output.
                    even if -C option is set by set the builtin command.
          &>>file   Redirect  both  the standard output and the standard error
                    output into the output to file.  If file doesn't exist  it
                    is created, otherwise output is appended to it.
          n<>file   Redirect  both  the  input/output  indicated  by  the file
                    descriptor n into the input/output from/to file.  If n  is
                    omitted,   it   is  regarded  as  the  standard  input  is
                    specified.
          n><file   Redirect both  the  input/output  indicated  by  the  file
                    descriptor  n into the input/output from/to file.  If n is
                    omitted,  it  is  regarded  as  the  standard  output   is
                    specified.
          n1<>&n2   Redirect  both  the  input/output  indicated  by  the file
                    descriptor n1 into the input/output indicated by the  file
                    descriptor  n2.   If  n1 is omitted, it is regarded as the
                    standard input is specified.
          n1><&n2   Redirect both  the  input/output  indicated  by  the  file
                    descriptor  n1 into the input/output indicated by the file
                    descriptor n2.  If n1 is omitted, it is  regarded  as  the
                    standard output is specified.
          n<-
          n<&-      Close  the input indicated by the file descriptor n.  If n
                    is omitted, it  is  regarded  as  the  standard  input  is
                    specified.
          n>-
          n>&-      Close the output indicated by the file descriptor n.  If n
                    is omitted, it is  regarded  as  the  standard  output  is
                    specified.
          n<>-
          n<>&-     Close   both   the  input/output  indicated  by  the  file
                    descriptor n.  If n is omitted,  it  is  regarded  as  the
                    standard input is specified.
          n><-
          n><&-     Close   both   the  input/output  indicated  by  the  file
                    descriptor n.  If n is omitted,  it  is  regarded  as  the
                    standard output is specified.
          n<<[-]word
                    Redirect the input indicated by the file descriptor n into
                    the input which is read up to a  input  line  as  same  as
                    word,  or  to  an  end  of  file.   If any part of word is
                    quoted, no input line is evaluated.  Otherwise, each input
                    line  is evaluated to expand variables or replace strings.
                    When you specify -, all tabs on  the  beginning  of  input
                    lines  is  stripped  to  be  send  to  a command.  If n is
                    omitted,  it  is  regarded  as  the  standard   input   is
                    specified.

       When  you  specify  the  file  with each redirect, you can describe the
       filename  as  `scheme://host:port'  form  to  open  the  following  TCP
       sockets, according to the string of scheme.  The authentication of your
       OS will restrict specifying the accepting port.  (UNIX)
          connect://host:port
                    This socket is connected to the remote host  specified  by
                    host with the TCP port number specified by port.
          accept://[host][:port]
                    This  socket  is  accepted  to the local host specified by
                    host with the TCP port number specified by port.  If  host
                    is  omitted, this socket will be accepted to any host.  If
                    port is omitted, the port within the range  determined  by
                    the OS is used.
          bind://[host][:port]
                    This  socket  is bound to the local host specified by host
                    with the TCP port  number  specified  by  port,  preparing
                    accept  the  builtin  command.   If  host is omitted, this
                    socket will be accepted to any host.  If port is  omitted,
                    the port within the range determined by the OS is used.

       On each command line, the string from '#' to the end of line and a null
       line are ignored.  When the line ends  with  '\',  it  is  referred  as
       continuing  into  the next line, so that you can split a long line with
       this.

   Builtin Commands
       Fd has the following builtin commands.  These builtin commands  can  be
       used in EXECUTE_SH and the initial configuration file.

       if list then [elif list then list] ... [else list] fi
                     The  list  of  if clause and elif clauses are executed in
                     order, and if each exit status is a 0, then the  list  of
                     then  clause  associated with it is executed and the elif
                     clauses after it are ignored.  If no list  of  if  clause
                     nor  elif  clauses return a 0, the list of else clause is
                     executed.  If no list of then clauses nor else clause  is
                     executed, then if returns a 0 exit status.

       while list do list done
                     The  list  of  while  clause  is executed repeatedly, and
                     while its exit status is 0, the  list  of  do  clause  is
                     executed  repeatedly.   If the list of do clause is never
                     executed, then while returns a 0 exit status.

       until list do list done
                     The list of until  clause  is  executed  repeatedly,  and
                     while  its exit status is NOT 0, the list of do clause is
                     executed repeatedly.  If the list of do clause  is  never
                     executed, then until returns a 0 exit status.

       for NAME [in value ...] do list done
                     NAME  the  internal variable is substituted for values of
                     value one by one, and list is executed according  to  the
                     each value.  If in value is omitted, then each positional
                     parameter is substituted one by one.

                     The string word is compared with the each  pattern,  list
                     associated  with  the  pattern  which first matches it is
                     executed.

       (list)        Execute list in a sub shell.

       { list; }     Execute list in the current shell.

       NAME=[value] [com ...]
                     Define a internal variable which is available only in fd.
                     It  substitutes  the  value  (string)  value for NAME the
                     internal variable.  When you  describe  the  command  com
                     after  the  definition  of a variable, com is executed on
                     the  state  where  this  variable  is  regarded  as   the
                     environment  variable.   In  this case, the definition of
                     NAME is not remain as the environment  variable  nor  the
                     internal variable.

                     If  value  is  omitted,  the  value  of NAME the internal
                     variable is defined as a null.  If you want to delete the
                     definition  of a internal variable, use unset the builtin
                     command.

       name() { list; }
                     Define a function whose body is  list,  as  the  name  of
                     name.   The  defined  function can be used in the command
                     line of  EXECUTE_SH  and  each  command  macro  described
                     below.   You  can use the positional parameter $n in each
                     description of list, which indicates  the  argument  when
                     the  function  is  invoked.  $0 is name itself, and $1-$9
                     indicates each argument.

                     Although you cannot omit { } and list, you can omit  {  }
                     before/after list which consists of a single command.  If
                     you want to delete the  definition  of  a  function,  use
                     unset the builtin command.

       !num          Execute   the   command  which  has  the  history  number
                     specified with  the  numeric  value  num.   When  num  is
                     negative  value,  it  executes  the command which has the
                     history number as the current history number minus num.

       !!            Execute the previous command.  This is synonym for !-1.

       !str          Execute the command history which starts with the  string
                     str.

       : [arg ...]   No   effect.    But   it   evaluates   arg  and  performs
                     redirection.

       . file
       source file   Read and evaluate commands from file.  File  must  exists
                     on  the  directory  which  PATH includes, or be described
                     with pathname.  The each line  format  is  based  on  the
                     format  of EXECUTE_SH.  You can describe this in the file
                     as nesting.

       accept [fd]   Accept the connection with the file descriptor  indicated
                     by  fd,  and the connected socket will be assign to fd of
                     the same file descriptor.  At the same time, the accepted
                     socket will be closed.  When fd is not the redirection as
                     the form of bind://, this command  will  be  failed.   In
                     comparison with the redirection as the form of accept://,
                     the  shell  can  receive  controls  before   establishing
                     connection  to  negotiate  the  TCP  port number with the
                     remote host in advance.  (UNIX)

                     If fd is omitted, the connection will  be  accepted  with
                     the standard input.

       addcr [-1] [file]
                     Output  the  string read from the file specified by file,
                     line by line.  The newline of each line is  unified  into
                     CR-NL  (
).   It  is useful to pipe the output to some
                     socket.

                     If file is omitted, it is regarded as the standard  input
                     is  specified.  If -1 is specified, it will output just 1
                     line and exit.

       alias [name[=com]]
                     Define a alias whose body is com, as the  name  of  name.
                     The  defined  alias  can  be  used in the command line of
                     EXECUTE_SH and each command macro described  below.   The
                     alias substitution is performed recursively.

                     If  com  is  omitted, the alias of name is displayed.  If
                     both com and name are  omitted,  all  the  current  alias
                     definition list is displayed.

       arch ext [pack unpack]
                     Register the archiver command associated with the archive
                     file which has ext the extension.  The  pack  command  is
                     specified as pack, and the unpack command is specified as
                     unpack, using the macro  representation  quoted  with  ".
                     When ext starts with /, uppercase/lowercase is ignored in
                     the comparison of any extension.

                     If both pack and unpack are omitted, the archiver command
                     registration for ext the extension is deleted.

       bg [job]      Continue  the  execution of the job specified with job in
                     the background.  The following  format  is  available  to
                     specify a job.  (UNIX)
                           %
                           %+   the current job
                           %-   the previous job
                           %n   the job with job number n
                           %str the job whose command line starts with str
                     But,  you  must  describe  these % in the command line of
                     EXECUTE_SH as the duplicated expression, such as %%,  for
                     the  reason  of  the  parameter  macro function described
                     below.

                     If job is omitted, the current job is  continued  in  the
                     background.

       bind c [com1 [com2] [:comment]]
                     Bind  the  command  com1  to the key c.  When you want to
                     specify a control character for c, you can prefix ^  into
                     2  characters,  such  as  ^A.  When you want to specify a
                     character with the META key (or the  ALT  key  on  MS-DOS
                     version), you can prefix @ into 2 characters, such as @a.
                     When you want to specify a function  key  and  a  special
                     key,  you  can  use  each  identifier described in keymap
                     command after, such as F10.   Or  you  can  describe  the
                     escape  sequence,  such  as  
  and  ,  and  the octal
                     expression, such as \ooo.

                     In case of binding the internal command of  fd,  you  can
                     the command identifier as it is.  When you want to define
                     the internal command with some arguments  or  define  the
                     command  in the macro representation, you should describe
                     the string quoted with ".  If com2 is not  omitted,  com2
                     is   executed   when  the  cursor  position  indicates  a
                     directory.  When the key c is the function key of F1-F20,
                     if  you  describe  comment  prefixed  with : trailing the
                     command  description,  you  can  change  the  display  of
                     associated part in the function line into comment.

                     However,  note that, with the key binding for the control
                     key, the configuration in the edit mode  described  below
                     is prior to the key binding.

                     If  both  com1  and com2 are omitted, the registration of
                     key binding for the key c is deleted.

       break [n]     Exit from the loop, it is used in the for  statement  and
                     so  on.   If  n is specified, it breaks n levels from the
                     loop.

       browse [-@ file]
       browse com [-ftbie arg] [-p com2] [-dn {noprep,loop}] ...
                     Execute com the command, and invoke the  archive  browser
                     who   receives   its   output.    You  should  the  macro
                     representation quoted with " as com.  -f, -t, -b, -i  and
                     -e options are the same as the one for launch the builtin
                     command.  In case that multiple coms are  specified,  the
                     next  com  the command is executed one after another when
                     you select each files in the  archive  browser,  and  the
                     formats and patterns described after each com the command
                     are adopted.  In order to return to the previous level of
                     archive  browser,  you should select the file named as ..
                     or push the key [Bs].  Or you  can  use  QUIT_SYSTEM  the
                     command  to  escape  from  all  of  the  archive browsers
                     invoked by browse.  You must describe -f  option,  except
                     for  the  last com the command.  When the last com has no
                     -f option, the command has been just executed instead  of
                     invoking  an archive browser, and then will return to the
                     previous archive browser when it is done.

                     When you specify -p option, the  execution  of  com2  the
                     command  precedes  the  execution  of  the  next  com the
                     command when you select a file.  While com is executed in
                     the  sub  shell  for  a pipeline, com2 is executed in the
                     current shell to inherit the values of internal variables
                     set  in  this  command  after  com2  has  been done.  The
                     filenames which is selected toward this level of  archive
                     browser  are  held in positional parameters sequentially,
                     and the last selected filename  is  held  in  $1.   These
                     parameters  will be newly set whenever you select a file,
                     so that they are  reset  in  sequential  order  when  you
                     select the next file even if you replace them with set or
                     shift the builtin command.  -d and -n options  specify  a
                     control  if  the  selected  file  is  a  directory or not
                     respectively.  When you specify noprep, com2 specified by
                     -p  option  is  not executed.  When you specify loop, you
                     don't step the next com the command but the same com  the
                     command again.

                     And  when  you  think  troublesome  to  describe too many
                     arguments for browse, you can specify file  the  file  in
                     which  some  arguments are described with -@ option.  You
                     can describe -@ option in any  place  of  arguments,  the
                     arguments  described  in  file  are inserted in the place
                     where -@  is  described.   If  you  specify  -  as  file,
                     arguments are read from the standard input instead of the
                     file.  You should describe arguments in file with  spaces
                     or  newlines  as  separator.   The null line and the line
                     started with # will be ignored.   When  you  describe  -@
                     option   in   file,   the   argument   file  is  referred
                     recursively.

       builtin arg ...
                     Execute arg as a simple builtin command.  When  the  same
                     named  function  is  defined,  the  function  will not be
                     executed.

       cd [-LP] [dir]
       chdir [-LP] [dir]
                     Change the current directory in fd to  dir.   If  dir  is
                     omitted,  it moves to the directory indicated by HOME the
                     internal variable.  If you specify the pathname  as  ".",
                     "?", "-", "@", it behaves like as LOG_DIR.

                     If  -L  is  specified,  the  logical  pathname  following
                     symbolic links is used.  If -P is specified, the physical
                     pathname following no symbolic links is used.  Otherwise,
                     the physical  option  for  set  the  builtin  command  is
                     effective.

       checkid [file ...]
                     Calculate the unique ID of the specified file and display
                     it, according to the MD5 algorithm in RFC1321.  When  you
                     specify  multiple  files,  the IDs of all specified files
                     are calculated and displayed.  When you specify  nothing,
                     the ID of running fd itself is displayed.

                     Since  this  algorithm  is guaranteed to be secure, it is
                     available to confirm the identity of files.

       cls           Clear the screen.

       command [-p | -v | -V] arg ...
                     Execute arg as a simple command.   When  the  same  named
                     function  is  defined, the function will not be executed.
                     If -p is specified, the default value of PATH is used  to
                     search  the  path.  If -v is specified, the absolute path
                     for arg is displayed instead of executing arg.   In  this
                     case, arg the builtin command will cause simply its name.
                     If -V  is  specified,  verbose  description  for  arg  is
                     displayed as same as type.

       continue n    Resume  the next iteration in the loop, it is used in the
                     for statement and so on.  If n is specified,  it  resumes
                     the  next  iteration  in the loop n - 1 levels out of the
                     loop.

       copy [-ABVY-Y] src [-AB] [+ src2 [-AB] [+ ...]] [dest [-AB]]
                     Copy the file indicated by  src  into  the  file  or  the
                     directory  indicated  by  dest.   When  dest  indicates a
                     directory, the filename in the destination  is  src.   If
                     dest is omitted, it is copied into the current directory.
                     You can specify multiple source files  by  describing  to
                     separate them with +, or by using the wildcard.  When you
                     separate them with +, those files  are  concatenated  and
                     copied.   When  you use the wildcard, they are copied one
                     by one in case that the destination is a  directory,  and
                     they  are  concatenated in case that the destination is a
                     file.

                     When you specify -A, it is  treated  as  the  ASCII  text
                     file.   When  you specify -B, it is treated as the binary
                     file.  When you specify -V, it is verified to copy.  When
                     you  specify  -Y,  it  doesn't  prompts for confirming to
                     overwrite into the destination.  When you specify --Y, it
                     prompts  for  confirmation  before  overwriting  into the
                     destination.

                     (MS-DOS version requires to use /  instead  of  -  as  an
                     option prefix for compatibility with COMMAND.COM.)

       del [-P] file
       erase [-P] file
                     Delete  the  files  indicated  by  file.  You can specify
                     multiple files by using wildcard.

                     When you specify -P, it prompts for  confirmation  before
                     deleting files.

                     (MS-DOS  version  requires  to  use  / instead of - as an
                     option prefix for compatibility with COMMAND.COM.)

       dir [-[-]PWSBLV4] [-A[DRHSA-]] [-O[NSEDGA-]] [dir]
                     List files and sub directories in the directory indicated
                     by  dir.   If  dir  is  omitted,  the  information in the
                     current directory is listed.

                     When you specify -P, it prompts for every  screen.   When
                     you  specify -W, it is listed in the wide view.  When you
                     specify -A, it  lists  only  the  files  which  have  the
                     attribute indicated by the trailing character.
                           D  directory        R  read only file
                           H  hidden file      S  system file
                           A  ready to archive -  except it
                     When  you  specify  -O,  it  sorts  with  the sorted type
                     indicated by the trailing character.
                           N  by name          S  by size
                           E  by extension     D  by date & time
                           G  directory first  A  by last access time
                           -  reverse order
                     When  you  specify  -S,  it  lists  files  in   all   sub
                     directories.  When you specify -B, it displays only names
                     of files and directories.  When you specify -L,  it  uses
                     lowercase.   When  you  specify  -V, it lists the verbose
                     information.  When you specify -4, it displays year  with
                     4  digits.   And you can prefix - to any option letter to
                     override the option.

                     (MS-DOS version requires to use /  instead  of  -  as  an
                     option prefix for compatibility with COMMAND.COM.)

       dirs          Display  the  list of the current directory stack.  Pushd
                     and popd the builtin command can load/unload  directories
                     onto the directory stack.

       disown [job]  Remove the job specified with job from the shell control.
                     The job to be disowned cannot be controlled by  jobs,  fg
                     and  bg.  If invoked as a login shell, any jobs not to be
                     disowned will be forced to exit when  the  shell  finish.
                     (UNIX)

                     If  job  is  omitted, the current job is removed from the
                     shell control.

       dtype file    Display the contents of the file indicated by file.

       echo [-nN] [arg ...]
                     Echo arg to the standard output.  When you don't  specify
                     -n,  newline is added to output trailing after arg.  When
                     you specify  -N,  the  outputted  newline  becomes  CR-NL
                     (
).  See echo(1) for details.

       enable [-n] [arg ...]
                     Enable arg as a builtin command.  When you specify -n, it
                     is disabled.  If arg is omitted, all of  the  enabled  or
                     disabled builtin commands is listed.

       eval [arg ...]
                     Evaluate arg and execute the results.

       evalmacro [arg ...]
                     Evaluate parameter macros included in arg and execute the
                     results.   Since  eval  doesn't  evaluate  any  parameter
                     macro, you should choose them according to uses.  When in
                     the function, you cannot use any  parameter  macro,  then
                     you need this command to extract parameter macros.

       exec [com [arg ...]]
                     Execute  com  in  place  of the execution of fd.  You can
                     specify arg as arguments of com.

       exit [n]      Exit from fd.  When you specify n, it exits with the exit
                     status n.

       export [NAME[=[value]] ...]
                     Mark  NAME the internal variable to be inherited to child
                     processes as the environment variable.  Since  then,  the
                     definition  of NAME can be referred in any child process.
                     When you  export  the  undefined  internal  variable,  it
                     doesn't   become   the  environment  variable  until  the
                     internal variable is defined.  When you  want  to  define
                     the value at the same time, you should specify value.

                     If only = is specified and value is omitted, the value of
                     NAME the environment variable is defined as a  null.   If
                     no argument is specified, all of the exported environment
                     variables  is  listed.   When  you  want  to  delete  the
                     definition of the environment variable, you can use unset
                     the builtin command.

       false         Only return with a 1 exit status.

       fc [-l | -s [old=new ...]] [-nr ] [-e editor] [first [last]]
                     List or edit command histories.  First  and  last  select
                     the  range  of command histories.  This specification can
                     be described as a numeric value or a string.  A  positive
                     value  means  the  command history number, and a negative
                     value means the command history  which  has  the  history
                     number  as the current history number minus the value.  A
                     string mean the command history  which  starts  with  the
                     string.  If -n is specified, command histories are listed
                     without their  history  numbers.   If  -r  is  specified,
                     command  histories are listed in reverse order.  If -e is
                     specified, the editor named by editor  is  used  to  edit
                     command  histories,  otherwise  the  editor  specified by
                     FCEDIT or EDITOR the internal variable is used.

                     When -l is  specified,  selected  command  histories  are
                     listed  to  the  standard output.  In this case, omitting
                     last means to specify the  current  history  number,  and
                     also omitting first means to specify -16.

                     When  -s  is  specified,  the command history selected by
                     first is executed immediately.  In  this  case,  omitting
                     first  means  to specify the current history number.  The
                     first occurrence of the string old in the command history
                     will be replaced by the string new before execution.

                     When neither -l nor -s is not specified, selected command
                     histories are edited, and then each edited  commands  are
                     executed  one by one with display in the standard output.
                     In this case, omitting last means to specify  first,  and
                     also  omitting first means to specify the current history
                     number for both.

       fd [directory [directory2]]
                     Invoke fd  from  the  internal  shell.   If  you  specify
                     directory,   the   current  directory  is  moved  to  the
                     directory initially.   If  you  specify  directory2,  the
                     split  window  mode is invoked, and the current directory
                     of the supplemental window is  moved  to  the  directory.
                     You  can return to the internal shell by QUIT_SYSTEM.  It
                     is effective only when it is invoked as fdsh.

       fg [job]      Continue the execution of the job specified with  job  in
                     the  foreground.   The  following  format is available to
                     specify a job.  (UNIX)
                           %
                           %+   the current job
                           %-   the previous job
                           %n   the job with job number n
                           %str the job whose command line starts with str
                     But, you must describe these % in  the  command  line  of
                     EXECUTE_SH  as the duplicated expression, such as %%, for
                     the reason of  the  parameter  macro  function  described
                     below.

                     If  job  is  omitted, the current job is continued in the
                     foreground.

       getfreq [file]
                     Output the contents of the  translation  frequency  file,
                     specified  by  file, to the standard output for the users
                     Kana-Kanji  translation  learning.   The  output   format
                     provides  one  record  per line, which consists of "Yomi-
                     Gana", "word" and "frequency" separated by tab.  You  can
                     use  this output as the argument of setfreq to import the
                     frequency  information.   If  file  is  omitted,  it   is
                     regarded  as  the translation frequency file specified by
                     FREQFILE the internal variable.  (UNIX)

       getkey [num]  Get the key code sequence for the pushed key.  It prompts
                     after  executed,  and  displays the key code sequence for
                     the key which you push to specify.   It  continues  until
                     you  push  any  key  num  times.  When num is more than 1
                     time, you can stop it with pushing [Space].  When num  is
                     0  time,  it  continues  forever until [Space] is pushed.
                     The displayed sequence  can  be  used  as  the  key  code
                     sequence for keymap command.  (UNIX)

                     If num is omitted, it is regarded as 1 time is specified.

       getopts optstr NAME [arg ...]
                     Used  to parse the optional parameters from a sequence of
                     arg.  The valid characters  as  option  is  described  in
                     optstr.   An  option character which needs an argument is
                     described with following : in optstr.  Each time  getopts
                     is  invoked,  the new option character parsed from arg is
                     substituted for NAME the  internal  variable.   When  the
                     option  has  an argument, the argument is substituted for
                     OPTARG the internal variable.  And the index of the  next
                     parameter is substituted for OPTIND the internal variable
                     every time.  The value of  OPTIND  is  initialized  to  1
                     whenever  the shell is invoked, another parsing of option
                     parameters needs initializing OPTIND to 1  manually.   If
                     arg  is  omitted, positional parameters are parsed to the
                     optional parameters.

                     When the end of option is encountered, getopts will  exit
                     with the value of 1.  In this case, ?  is substituted for
                     NAME.  When an option character which is not included  in
                     optstr  is  found,  an  error  message  is written to the
                     standard error, then  ?   is  substituted  for  NAME  and
                     OPTARG  is  unset.   But, if OPTARG is started with :, no
                     error message is written, and the found option  character
                     is  substituted  for OPTARG instead.  When no argument is
                     found with the option character which needs an  argument,
                     an error message is written to the standard error, then ?
                     is substituted for NAME and OPTARG  is  unset.   But,  if
                     OPTARG  is  started  with :, no error message is written,
                     then the found option character is substituted for OPTARG
                     instead, and : is substituted for NAME.

       hash [-r ⎪ com ...]
                     Search the absolute path for com referring to PATH, which
                     indicates the search path when the  external  command  is
                     executed, and register the result in the hash table.

                     When  you  specify  -r  instead of com, all the memorized
                     hash table is discarded.  If com  is  omitted,  the  hash
                     table   information   is  listed.   hits,  cost,  command
                     indicate  the  number  of  times  the  command  has  been
                     executed,  the  measure of the work required to search it
                     in the  search  path,  and  the  absolute  path  for  the
                     command, respectively.  When the command is searched in a
                     relative directory, it is necessary to re-search whenever
                     the  current  directory  is  moved,  because  it  is  not
                     trailing hits is displayed.

       history [n]   List  the  last  n  command  histories  with  the history
                     number.

                     If n is omitted, all of the memorized  command  histories
                     is listed.

       jobs          List the running jobs.  (UNIX)

       kconv [-i in] [-o out] [infile [outfile]]
                     Read  from  infile  and convert its Kanji code from in to
                     out, and output to outfile.   In  in  and  out,  you  can
                     specify  the string which used in FNAMEKCODE the internal
                     variable described below.  If each of them is omitted, it
                     is  regarded  as that the Kanji code specified in compile
                     is specified.  If outfile is omitted, it outputs  to  the
                     standard  output.   If  also  infile is omitted, it reads
                     from the standard input.  (UNIX)

       keymap [c [str]]
                     Map the sequence str as key code of the  special  key  c.
                     You can use only the following identifiers as c.  (UNIX)
                           UP       Up         DOWN     Down
                           RIGHT    Right      LEFT     Left
                           BEG      Begin      EOL      Eol
                           HOME     Home       END      End
                           INS      Insert     DEL      Delete
                           INSLIN   InsLine    DELLIN   DelLine
                           PPAGE    PageUp     NPAGE    PageDown
                           ENTER    Enter      BS       Bs
                           CLR      Clear      HELP     Help
                           PLUS     + (tenkey) MINUS    - (tenkey)
                           ASTER    ∗ (tenkey) SLASH    / (tenkey)
                           COMMA    , (tenkey) DOT      . (tenkey)
                           EQUAL    = (tenkey) RET      Return (tenkey)
                           TK0..TK9 0-9 (tenkey)
                           F1...F20 function key

                     You can use the escape sequence in the key code sequence,
                     such as 
 =0x0a and  =0x1b.   You  can  also  use  the
                     octal  expression,  such  as  \ooo.  You can describe the
                     control character prefixing ^, such as ^A.  ^ itself  can
                     be described as \^.

                     If  str  is  omitted,  the  key  code  sequence  for c is
                     displayed.  If both str and c are  omitted,  all  of  the
                     mappings  for  special  keys is listed.  When you specify
                     str as "", the key code mapping for c is canceled.

       kill [-l ⎪ -signal] [pidjob ...]
                     Send the  signal  indicated  by  signal  to  the  process
                     indicated  by  the  process  number  pid  or  to  the job
                     indicated by job.  Signal is described as a numeric value
                     or a signal name.

                     If  signal is omitted, SIGTERM is send.  When you specify
                     -l, it lists the signal names which can be used as signal
                     instead of sending a signal.

       launch ext [com [format [top bottom]]]
       launch ext com [-f format] [-t top] [-b bottom] [-ie patt]
                     Register  the  behavior  for  ext  the  extension  as the
                     launcher.  You should  the  macro  representation  quoted
                     with " as com.  When you register an archive browser, you
                     should describe the command to list the archived files as
                     com, and describe the format of the list as format.  When
                     you describe top and bottom, you can specify  unnecessary
                     lines  in  the  list  as  the  number  of  lines from the
                     top/bottom   line.    When    ext    starts    with    /,
                     uppercase/lowercase  is  ignored in the comparison of any
                     extension.

                     If com is omitted, the launcher registration for  ext  is
                     canceled.

                     When  you  register  an  archive browser, you can use the
                     latter form to describe more detailed control.   You  can
                     specify  multiple  formats as candidates with multiple -f
                     options.  These candidates for  format  are  compared  in
                     order of appearance, if no one is matched completely then
                     the nearest one is adopted.  -i and  -e  options  specify
                     patt  the  pattern for the line to be ignored and for the
                     line to be treated as error respectively.  When the  list
                     includes  unnecessary  lines you can specify also top and
                     bottom, but you  must  specify  lines  except  top/bottom
                     lines  with  -i option.  In case that a failure to unpack
                     files in the archive file causes outputting some strings,
                     you  can  specify  the strings with -e option.  -i and -e
                     options can  specify  multiple  patterns,  and  they  are
                     effective  if  one of them is matched.  And you can use a
                     wildcard in the description for each patt the pattern.

       md dir        Create the directory dir.

       mkdir dir     Same as md.  (DOS)

       newgrp [arg ...]
                     Execute newgrp(1) in place of the execution of  fd.   You
                     can specify arg as arguments of newgrp(1).  See newgrp(1)
                     for details.  (UNIX)

       login [arg ...]
                     Execute login(1) in place of the execution  of  fd.   You
                     can  specify  arg as arguments of login(1).  See login(1)
                     for details.  (UNIX)

       logout [n]    Exit from a login shell.  When you specify  n,  it  exits
                     with the exit status n.

       popd          Unload  the  top  directory onto the directory stack, and
                     change the current directory  in  fd  to  the  directory.
                     This command is failed when the directory stack is empty.

       printarch [ext]
                     Print  the  archiver  commands registered for the archive
                     file which has ext the extension.

                     If  ext  is  omitted,  all  of  the  registered  archiver
                     commands is listed.

       printbind [c] Print  the  command binded to the key c.  You can specify
                     the key as well as bind.

                     If c is omitted, all of the registered  key  bindings  is
                     listed,  which is defined not as the internal command but
                     as the command  macro.   The  key  bindings  of  internal
                     commands can be referred in HELP_MESSAGE.

       printdrv [c]  Print    the    device    file    and   the   number   of
                     heads/sectors/cylinders of the  floppy  drive  registered
                     for the drive name c.  (UNIX)

                     If  c  is omitted, all of the registered floppy drives is
                     listed.

       printlaunch [ext]
                     Print the command macro registered as  the  launcher  for
                     ext  the extension.  When it is registered as the archive
                     browser, the format for listing is also printed.

                     If ext is omitted, all of  the  registered  launchers  is
                     listed.

       printroman [roman]
                     Print the Roman-Kana translation table for the Kana-Kanji
                     IME mode.  It means printing the  Japanese  string  bound
                     for roman the Roman string.  (UNIX)

                     If  roman  is  omitted,  all  the  registered  Roman-Kana
                     translation table is listed.

       pushd [dir]   Load the current directory onto the directory stack,  and
                     change  the  current  directory  in  fd  to  dir.  If you
                     specify the pathname as ".", "?", "-",  "@",  it  behaves
                     like as LOG_DIR.  The physical option for set the builtin
                     command is effective for symbolic links.

                     If dir is omitted, change the current  directory  to  the
                     top directory of the directory stack, and replace it with
                     the current directory.  In this  case,  this  command  is
                     failed when the directory stack is empty.

       pwd [-LP]     Display   the   current   directory   with  the  absolute
                     representation.  If -L is specified, the logical pathname
                     following   symbolic   links  is  displayed.   If  -P  is
                     specified, the physical pathname  following  no  symbolic
                     links  is  displayed.  Otherwise, the physical option for
                     set the builtin command is effective.

       read [-N] [NAME ...]
                     Read one line from the standard input and substitute that
                     string  for  NAME  the  internal  variable.  The inputted
                     string is separated  with  IFS  into  some  words.   When
                     multiple  NAMEs  are specified, words are substituted one
                     by one from the first of  line,  and  all  the  rest  are
                     substituted  for the last NAME.  When the number of words
                     in inputted string is less than the  number  of  NAME,  a
                     null is substituted for the rest of NAME.

                     If -N is specified, the newline of the line to be read is
                     regarded as CR-NL (
).

       readline [prompt]
                     Read one line from the terminal  input  and  output  that
                     string to the standard output.  When prompt is specified,
                     the string is displayed on the beginning of  input  line.
                     This command differs from read the builtin command in the
                     terminal input and the line editing.  You cannot use  the
                     history  as  one  of  the  line  editing, but can use the
                     completion for a pathname.

       readonly [NAME[=[value]] ...]
                     Mark NAME the internal variable to  be  readonly.   Since
                     then, you cannot change the value of NAME.  When you want
                     to define the value at the same time, you should  specify
                     value.

                     If only = is specified and value is omitted, the value of
                     NAME the internal variable is defined as a null.   If  no
                     argument  is  specified,  all  of  the  readonly internal
                     variables is listed.

       rd dir        Delete the directory dir.  You  cannot  delete  the  non-
                     empty directory.

       rmdir dir     Same as rd.  (DOS)

       ren old new
       rename old new
                     Rename  the  filename or the directory name old into new.
                     You can specify the wildcard in old and new to rename the
                     multiple filenames all together.

       rem [arg ...] No effect, same as :.

       return [n]    Return from a function with the return value specified by
                     n.  If n is omitted, the return value is the exit  status
                     of the last executed command.  It cannot be used out of a
                     function.

       savetty [-n]  Save the current terminal settings.  The  saved  settings
                     will  be  restored when EXECUTE_SH is executed later.  In
                     case that you change terminal settings with  stty(1)  and
                     so on, you should save the settings with this command not
                     to reset settings with the next execution of  EXECUTE_SH.
                     If  you change terminal settings and execute this command
                     not in the same command line, you should notice that this
                     command   will   save  the  reset  settings.   If  -n  is
                     specified, the saved settings will be cleared.  (UNIX)

       set [--abCefhkmntuvx] [-o option] [arg ...]
                     List  internal  variables  and  functions,  without   any
                     argument.   When  you specify arg, arg is substituted for
                     the positional parameter $1, $2, ..., $n in order.   When
                     you  specify any option, each option means the following.
                     When you use + instead of -, the option  parameter  turns
                     off each option.
                     -a   Export  any  internal variable automatically when it
                          is defined.
                     -b   When a  background  job  has  been  terminated,  its
                          status  report will be displayed immediately.  there
                          is no effect when the job control is not enabled.
                     -C   Prevent  overwriting  to  any  existent   files   in
                          redirection.
                     -e   Exit  immediately  when any command returns the exit
                          status except 0.
                     -f   Disable the wildcard expansion.
                     -h   Register any command to the hash table  just  before
                          it is executed.  The commands used in a function are
                          read when it is defined, and are registered  to  the
                          hash  table.   The  command  hash  itself  is always
                          valid, if -h option is set or not.
                     -k   Treat  all  NAME=[value]  formed  arguments  as  the
                          variable  definition,  while  they are not placed on
                          the beginning of command line string.
                     -m   Enable the job control.  This  option  is  valid  by
                          default.  (UNIX)
                     -n   Read command inputs but don't execute them.
                     -o option
                          The following identifiers are valid in option.
                          allexport
                               Same as -a.
                          autosavetty
                               Same as -S.
                          emacs
                               Same as EDITMODE=emacs.
                          errexit
                               Same as -e.
                          hashahead
                               Same as -h.
                          ignoreeof
                               Any  EOF  will  not  terminate  the interactive
                               shell.
                          keyword
                               Same as -k.
                          monitor
                               Same as -m.
                          noclobber
                               Same as -C.
                          noexec
                               Same as -n.
                          noglob
                               Same as -f.
                          notify
                               Same as -b.
                          nounset
                               Same as -u.
                          onecmd
                               Same as -t.
                          physical
                               Same as -P.
                          ptyshell
                               Same as -T.
                          verbose
                               Same as -v.
                          vi   Same as EDITMODE=vi.
                          xtrace
                               Same as -x.
                          If option is omitted,  the  values  of  the  current
                          options are displayed.
                     -P   Cd  and  pwd  the  builtin  command use the physical
                          directory structure instead of the logical directory
                          structure following symbolic links.
                     -S   Execute  savetty  the  builtin command automatically
                          whenever  any  command  line  is   processed.    The
                          terminal  settings  will  be saved absolutely unless
                          you operate the terminal settings intentionally,  so
                          that   you   should  manually  adjust  the  terminal
                          settings saved accidentally.  (UNIX)
                     -T   Invoke fdsh as  the  pseudo  terminal.   You  cannot
                          invoke  any  more pseudo terminals in this mode.  It
                          is effective only if you specify it as  the  startup
                          option  or in the initial configuration file.  It is
                          effective only if you  specify  it  as  the  startup
                          option,  when  the  shell  is  executed  as the non-
                          interactive shell.  It is just ignored when  invoked
                          as fd.  (UNIX)
                     -t   Exit immediately after executing the current command
                          input.
                     -u   Treat the reference of  undefined  variables  as  an
                          error.
                     -v   Display the command inputs whenever they are read.
                     -x   Display   the  command  strings  whenever  they  are
                          executed.
                     --   Indicate the end of options.  No flag is changed.

       setdrv c device hd sc cl
                     Specify the device file indicated by device for  the  MS-
                     DOS  floppy  drive named as c.  At the same time, hd, sc,
                     cl     are     specified     as     the     number     of
                     heads(sides)/sectors/cylinders(tracks)   in   the  format
                     which is treated in the driver  of  device.   In  special
                     case,      when     you     want     to     treat     the
                     640KB2DD(hd=2/sc=8/cl=80) floppy  disk  with  the  driver
                     which can treat only the 820KB2DD(hd=2/sc=9/cl=80) floppy
                     disk, you should specify the value adding  100  (108)  as
                     the value of sc.  (UNIX)

                     On  the  PC-UNIX  environment  which  is  worked  on  PC,
                     specifying the string HDD or HDD98 instead of hd, sc, cl,
                     can  register  the  MS-DOS partition on the hard disk for
                     the PC/AT compatible machine or PC-9800 series.  In  this
                     case,  You  should describe the device file as the device
                     name prepared per the physical drive unit rather than the
                     device  name prepared per the partition (slice).  The MS-
                     DOS  partitions  included   in   the   drive   unit   are
                     automatically  expanded to the drive name after the drive
                     name c.  When no MS-DOS  partition  is  included  in  the
                     specified  drive  unit, this command is ignored.  You can
                     confirm what drive name is  valid  by  printdrv  command.
                     But   any  hard  disk  is  registered  as  readonly,  for
                     security.

       setfreq [file]
                     Append  the  frequency  information  inputted  from   the
                     standard   input   to  the  translation  frequency  file,
                     specified by file, for the users  Kana-Kanji  translation
                     learning.  The input format is based on the output format
                     of getfreq.  If you  want  to  replace,  rather  than  to
                     append, you must remove the translation frequency file in
                     advance.  If file is  omitted,  it  is  regarded  as  the
                     translation  frequency  file  specified  by  FREQFILE the
                     internal variable.  (UNIX)

       setroman [-c] [-r] [-f file] [roman [kanji]]
                     Setup the Roman-Kana translation table for the Kana-Kanji
                     IME  mode.  It means binding kanji the Japanese string to
                     roman the Roman string.  The part over  4  characters  of
                     roman,  the  string  which  consists of 1 byte characters
                     only, will be ignored.  The part  over  2  characters  of
                     kanji,  the string which consists of multibyte characters
                     or 1 byte characters, will be ignored.  In this  case,  a
                     multibyte  character is counted as 1 character as well as
                     a 1 byte character.  (UNIX)

                     If kanji is omitted, the registered binding of the Roman-
                     Kana translation table for roman the Roman string will be
                     deleted.  When  you  specify  -c,  the  whole  Roman-Kana
                     translation  table will be cleared to be empty.  When you
                     specify -r, all the registered bindings will be reset  to
                     restore  the  Roman-Kana  translation  table.   When  you
                     specify -f, the file specified by file will  be  read  as
                     bindings  of  the  Roman-Kana translation table.  In this
                     case, a pair of roman and kanji, which  is  separated  by
                     spaces,  must be described in each line of file.  You can
                     also  use  the  file  which  contains   the   output   of
                     printroman.

       shift [n]     Rename the positional parameters from $n+1 into ones from
                     $1 in order.  The original positional parameters from  $1
                     to  $n are discarded.  If n is omitted, it is regard as 1
                     is specified.

       socketinfo [-apAP] [fd]
                     If the file descriptor specified by fd is a  socket,  the
                     IP  address  and  the  TCP  port  number of the connected
                     remote host, and the IP address and the TCP  port  number
                     of  the  connected  local  host,  are  outputted  to  the
                     standard output.  If fd is not  a  socket,  this  command
                     will be failed.  (UNIX)

                     If fd is omitted, it is regarded as the standard input is
                     specified.  If -a is specified, only the  IP  address  of
                     the  remote  host will be outputted.  If -p is specified,
                     only the TCP port number  of  the  remote  host  will  be
                     outputted.   If  -A  is specified, only the IP address of
                     the local host will be outputted.  If  -P  is  specified,
                     only  the  TCP  port  number  of  the  local host will be
                     outputted.

       test [expr]
       [ expr ]      Evaluate the conditional expression  expr.   See  test(1)
                     for details.

       times         Display  the  accumulated  user  and  system time for the
                     processes which has so far been executed.

       trap [com] [n ...]
                     Read and execute the command com  when  fd  receives  the
                     signal  n.  If com is omitted, the trap for the signal is
                     reset.  When you  specify  com  as  a  null,  the  signal
                     ignored.   When  you  specify  n as 0, the command com is
                     executed on exit.  If both com and n are omitted, all  of
                     the registered traps is listed.

       true          Only return with a 0 exit status.

       type [com ...]
                     Display  how each com would be treated when it is used as
                     a command name.

       ulimit [-SH] [-a ⎪ -cdflmnstv] n
                     Set the resource limits for fd and its child processes to
                     the  value  indicated  by  n.   You  can  use  the string
                     unlimited or the numeric value in n, unlimited means  the
                     maximum specifiable value.  (UNIX)

                     When  you  specify  -H,  a  hard  limit is set.  When you
                     specify -S, a soft limit is set.  When you don't  specify
                     neither  of  them, both limits are set.  If n is omitted,
                     the current limit is displayed.  When you specify -a, all
                     of the resource limits is displayed.

                     When you specify the following options, the each resource
                     limit is individually set or displayed.  If no option  is
                     specified, it is regarded as -f is specified.
                     -c   maximum core file size (in blocks)
                     -d   maximum size of data segment (in KB)
                     -f   maximum file size (in blocks)
                     -l   maximum size of locked in memory (in KB)
                     -m   maximum size of resident set (in KB)
                     -n   maximum number of open file files
                     -s   maximum size of stack segment (in KB)
                     -t   maximum CPU time (in seconds)
                     -v   maximum size of virtual memory (in KB)

       umask [nnn]   Set  the  file  creation mask to nnn.  If nnn is omitted,
                     the current value of the file creation mask is displayed.
                     See umask(2) for details.

       unalias name  Cancel the definition of the alias name.  You can use the
                     wildcard in name, in this case, all of the matched  alias
                     definitions  is  canceled.   When you specify "∗", all of
                     the alias definitions is invalid.

       unset [NAME ...]
                     Delete the defined internal variable or function for each
                     NAME.   But  the  following variable definition cannot be
                     deleted.
                           PATH      PS1       PS2       IFS
                           MAILCHECK PPID

       unsetdrv c device hd sc cl
                     Delete   the   registered   floppy   drive.    Only   the
                     registration  with  which  all  of  device, hd, sc, cl is
                     corresponded is  deleted,  then  you  should  confirm  to
                     delete very well.  (UNIX)

                     When  it  is  registered  as  HDD or HDD98 in setdrv, you
                     should describe HDD or HDD98 instead of hd, sc, cl.

       wait [pidjob]
                     Wait for the process indicated by  pid  or  for  the  job
                     indicated  by  job,  and return its exit status.  If both
                     pid and job are omitted, all  running  jobs  are  waited.
                     (UNIX)

       yesno [prompt]
                     Wait  for  a  input of y or n from the terminal, and then
                     return 0 when  y  is  inputted,  return  255  when  n  is
                     inputted.   Instead  of input of y or n, you can select a
                     character from displayed [Y/N] with cursor keys and  push
                     [Return]  to  be  regarded  as  an  input of the selected
                     character.  An input of [Space] or [Esc] means the  input
                     of  n.  When prompt is specified, the string is displayed
                     before [Y/N].

       COMMAND [arg] Execute the internal command  COMMAND  of  fd.   You  can
                     describe   each   command  identifier  in  COMMAND.   The
                     following internal commands can take a parameter argument
                     arg.
                     CUR_UP
                     CUR_DOWN
                     CUR_RIGHT
                     CUR_LEFT
                     ROLL_UP
                     ROLL_DOWN
                     WIDEN_WINDOW
                     NARROW_WINDOW  The number of lines, columns, or pages.
                     RENAME_FILE
                     PACK_FILE
                     BACKUP_TAPE    The filename.
                     LOG_DIR
                     MAKE_DIR
                     INFO_FILESYS
                     UNPACK_FILE    The directory name.
                     EXECUTE_SH     The command string.
                     MARK_FIND
                     FIND_FILE
                     FIND_DIR       The wildcard string.
                     MARK_ALL       0  will  reset  the mark of all files, the
                                    other will mark all files.
                     SORT_DIR       The number substituted  for  SORTTYPE  the
                                    internal variable.
                     EDIT_CONFIG    The   name  of  internal  variable  to  be
                                    edited.

       ~ and $ in the previous registration string are  expanded.   But  these
       expansions are restrained in the string quoted with ' instead of ".

   Tree Screen
       Since  representing  the  whole file system in tree structure takes too
       many time, only the directories which  are  direct  ancestors  and  the
       direct sub directories are displayed, first in the tree screen.  In the
       directories which are direct ancestors, the other sub  directories  (if
       exists)  are  grouped  as "...".  These grouped sub directories will be
       expanded automatically when a cursor is placed on its position.

       The sub directories which are not expanded yet are represented with '>'
       trailing  the  filename,  which  shows  as they are.  Such directory is
       never expanded until it is required  to  expand  explicitly,  then  you
       should  expand  it  by  the  following  key inputs before moving to any
       hidden sub directory.

       In the tree screen, the following key inputs are available.
              Up, Down  Move a cursor.
              Right     Expand the sub directory on the cursor position.
              Tab       Expand  the  sub  directory  on  the  cursor  position
                        recursively.
              PageUp, PageDown
                        Move a cursor by half screen.
              Home(<), End(>)
                        Move a cursor to the top/bottom of tree.
              ?         Move a cursor to the current directory.
              Bs        Move a cursor to the parent directory.
              Left      Group  sub  directories of the directory on the cursor
                        position, or move a cursor to the parent directory.
              (, )      Move a cursor to the previous/next directory among the
                        same level sub directories.
              A - Z     Move  a cursor to the directory whose name starts with
                        the character or its lowercase.
              l         Change  the  directory   tree   into   the   specified
                        directory.    Moving  to  the  floppy  drive  is  also
                        available.
              ^L        Redraw the tree structure.
              Return    Select the directory.
              Esc       Cancel.

       When directories are recursively expanded, the machine operation is  so
       late  that  it  maybe seems to freeze.  In this case, you can input any
       key while operating.   If  key  input  is  recognized  while  expanding
       directories,  expanding has been stopped at that moment in spite of not
       finishing.  Even if key repeat keeps effective, any operation  will  be
       delayed for this function.

   Archive Browser
       When  the  launcher  is  invoked  on  the  position  of  the file whose
       extension is registered to  associate  with  an  archive  browser,  the
       archive  browser screen has come.  In this screen, you can browse files
       in the archive file as well as in the normal directory.  But you cannot
       use the following internal commands in this screen.
              LOG_TOP        ATTR_FILE      COPY_FILE      MOVE_FILE
              DELETE_FILE    DELETE_DIR     RENAME_FILE    MAKE_DIR
              WRITE_DIR      TREE_DIR       EDIT_FILE      LOG_TREE
              COPY_TREE      MOVE_TREE      FIND_DIR       ATTR_DIR
              SYMLINK_MODE   DOTFILE_MODE   FILEFLG_MODE   SPLIT_WINDOW
              KILL_WINDOW

       When  you want to register a new archive browser, you must describe the
       format listed by the archiver as  the  following  representation.   One
       format string represents the format for 1 file in the list.
              %a        Field which indicates a file mode
              %u        Field which indicates UID of a file
              %g        Field which indicates GID of a file
              %s        Field which indicates a file size
              %y        Field which indicates a file creation year
              %m        Field which indicates a file creation month
                        (No concerning if numeric or alphabetical)
              %d        Field which indicates a file creation day
              %w        Field which indicates a file creation week (ignored)
              %t        Field which indicates a file creation time
                        ("HH:MM:SS" form, MM and SS can be lacking)
              %p        Field which indicates a file creation am/pm
              %B        Field which indicates a major device ID
              %b        Field which indicates a minor device ID
              %/str/    Field which indicates a type is directory
                        when this field string is str
                        (case insensitive)
              %!str!    0 or more continuous fields
                        which consists of the string str
                        (case insensitive)
              %f        Field which indicates a filename
              %x        Field which is needless (ignored)
              %%        % itself
              
        Newline
              Space Tab 0 or more characters of spaces or tabs

       In this description, the field means the area separated by spaces, tabs
       or newlines.  When the  string  which  indicates  each  information  is
       separated by these characters, you can simply describe the above string
       which indicates that field.  When the string is  separated  by  another
       character,  you  should  describe the above string with that separator.
       You can describe to indicate the field length as numeric, such as %10a.
       This  example means that the field which indicates a file mode consists
       of 10 characters.  If you describe it with a character * as  the  field
       length  instead  of numeric, such as %*f, the string to the end of line
       is regarded as a field, in which any space and tab will be ignored.

       When a field may have the different meanings  according  to  situation,
       you  should  describe  it quoted with { }, such as %{yt}.  This example
       means that this field indicates a creation year  or  a  creation  time.
       When  the information for 1 file consists of multiple lines, you should
       place a 
 on the position of newline in the format string.

       For example, the following are the format strings for the list of  some
       archivers.   While some spaces are used here for easiness to see, these
       spaces are not always necessary because any  space  between  fields  is
       ignored.
       `lha l'           "%9a %u/%g %s %x %m %d %{yt} %f"
       `lha v' (MS-DOS)  "%f
%s %x %x %y-%m-%d %t"
       `tar tvf' (BSD)   "%9a %u/%g %s %m %d %t %y %f"
       `tar tvf' (SVR4)  "%a %u/%g %s %m %d %t %y %f"

       If  you  register  archive  browsers  with above format, in the builtin
       command of EXECUTE_SH or in the initial configuration file, you can use
       the archive browser which is not prepared by default.  But, if you want
       to execute or view files in the archive file,  you  must  register  the
       archiver command for the archive file, too, don't forget this.

       On  some  OS, tar(1) may output the Japanese timestamp when japanese is
       substituted for LANG the environment variable.  Since fd cannot analyze
       the  representation  like  this, you should describe `export LANG=C' in
       the initial configuration file, or specify LANG in the  description  of
       listing command, such as `LANG=C tar tvf'.

   Floppy Drive (UNIX)
       You  can  access  the  MS-DOS formatted floppy disk, by representing to
       prefix "c:" to the directory name.  But, it is  necessary  to  register
       the  floppy  drive  and  set DOSDRIVE the internal variable which makes
       this function effective, in advance.

       Each registered drive is distinguished with the drive name.  You should
       tag  the  physically different drive as the different drive name.  When
       the same physical drive supports multiple  formats,  you  can  register
       each  format with the same drive name, or the different drive name each
       other.  If you tag the same drive name, the justice of  the  format  is
       tried in registered order, so that you should register the format which
       you often use in the first place.

       Each drive of the floppy drive has the its own current directory.   The
       default value of this is a root directory, and the current directory is
       moved back to a root directory again whenever you change a floppy disk.
       When you describe the directory name as starting with '/' after ':', it
       means the absolute path representation of that drive.  If this  '/'  is
       not  exist,  it means the relative path representation from the current
       directory of that drive, don't forget this.

       Regrettably, some internal commands  like  as  WRITE_DIR,  INFO_FILESYS
       cannot  support the floppy drive.  Some filenames are renamed when they
       are copied from UNIX for reason of the filename length limit.

       When you use a lowercase letter as the drive name, you can access it as
       the  floppy  drive  which  can  treat  the Long File Name (LFN) for MS-
       Windows formatted floppy disk.  In this case, you can copy a file  with
       a  long  filename  on UNIX as it is.  But, when the UNICODE translation
       table fd-unicd.tbl does not exist in the same directory as the  invoked
       fd  exists, any Kanji filename cannot be treated as LFN representation.
       Reversely, when you use a uppercase letter as the drive  name,  LFN  is
       ignored  and  8+3  formed filename is treated.  MS-DOS version inherits
       this specification by the case of a drive name.

   URL Drive (UNIX)
       You can access remote services on the network, by representing the  URL
       string    as    the    directory    name.     The    URL    format   is
       scheme://[user[:password]@]host[:port]/directory/.  You can specify ftp
       or  http  as  scheme.   You  can  specify the name or IP address of the
       remote host as host.  You can specify the TCP port number as port.   If
       port  is  omitted,  the  default port number is used.  The default port
       number for ftp is 21, and the default port number for http is 80.   You
       can  specify account information to connect the remote host as user and
       password.  If user is omitted, the anonymous  FTP  connection  will  be
       used with ftp, or you will be queried as needed with http.  If password
       is omitted, you will be queried as needed.  But, it is necessary to set
       URLDRIVE  the internal variable which makes this function effective, in
       advance.

       Regrettably, some internal commands cannot support the URL  drive,  for
       the  sake  of restrictions of the FTP and HTTP protocols or settings of
       the host side.

   String Input
       When you input the string, such as  the  pathname,  the  following  key
       inputs  are  available.   The kind of referred history differs with the
       input string required.  In the split window mode, the current directory
       of another window is always placed on the top of the pathname history.
       Left, Right
                 Move a cursor.
       Up, Down  Refer  the  previous histories (only commands and pathnames),
                 or move a cursor.
       Beg       Move a cursor to the beginning of string.
       Eol       Move a cursor to the end of string.
       Ins       Switch a input method to the insert/overwrite mode.  (Default
                 value is the insert mode.)
       Del       Delete a character on the cursor position.
       Bs        Delete a character before the cursor position.
       DelLine   Delete a string after the cursor position.
       InsLine   Treat  the  next input character as it is, effective to input
                 control characters.
       Enter     Insert a filename of the file on the cursor position.
       PageUp    Convert a character on the cursor position to uppercase.
       PageDown  Convert a character on the cursor position to lowercase.
       Tab       Complete a pathname, a command name or a variable name on the
                 cursor position.
                 When there are two or more completion choices, inputting this
                 continuously can display the completion choice list.   Except
                 for command line in the internal shell, you can make a choice
                 from this list with cursor keys and [Return].
       ^L        Redraw the input string.
       ^S, ^R    Search the previous histories (only commands  and  pathnames)
                 incrementally.
       Return    Decide  the  input,  or  decide  the choice in the completion
                 choice list.
       Esc       Cancel.

       The inputted string is expanded before evaluation as following.   These
       expansions  are  also valid in the string of command macros.  But these
       expansions are restrained in the string quoted with the quotation  mark
       '.

       ~       Indicate  your  home  directory,  when  it  is the beginning of
               filename.

       ~user   Indicate user's home directory, when it  is  the  beginning  of
               filename.  (UNIX)

       ~FD     Indicate  the directory where the invoked fd is exists, when it
               is the beginning of filename.

       $NAME
       ${NAME} Indicate the  value  of  NAME  the  internal  variable  or  the
               environment  variable.   When  both  are  defined, the internal
               variable is prior.  When both are undefined, it is  replaced  a
               null.    The  brace  {  }  separates  NAME  from  its  trailing
               characters.

               When NAME is the following character, it  is  replaced  by  the
               value substituted automatically by the shell.
               0      The executable filename when invoked.
               [1-9]  The positional parameter.
               @      The all positional  parameters  which  starts  from  $1.
                      "$@" is replaced by "$1" "$2" ... .
               #      The number of positional parameters.
               -      The option flags which is set by options when invoked or
                      set the builtin command.
               ?      The exit status of the last executed command.
               $      The process number of the current shell.
               !      The process  number  of  the  last  executed  background
                      process.

       ${NAME:-word}
               If the value except a null is substituted for NAME the internal
               variable or the environment variable, it  is  replaced  by  the
               value, otherwise it is replaced by word.

       ${NAME:=word}
               If the value except a null is substituted for NAME the internal
               variable or the environment variable, it  is  replaced  by  the
               value,  otherwise  word  is  substituted  for NAME the internal
               variable, and this expression itself is replaced by word.   But
               you cannot substitute the value for any positional parameter.

       ${NAME:?word}
               If the value except a null is substituted for NAME the internal
               variable or the environment variable, it  is  replaced  by  the
               value, otherwise display word and exit from the shell.  If word
               is omitted,  the  string  ``parameter  null  or  not  set''  is
               displayed in its place.

       ${NAME:+word}
               If the value except a null is substituted for NAME the internal
               variable or the environment variable, it is replaced  by  word,
               otherwise it is replaced by a null.

       ${NAME-word}
               If  any  value is substituted for NAME the internal variable or
               the  environment  variable,  it  is  replaced  by  the   value,
               otherwise it is replaced by word.

       ${NAME=word}
               If  any  value is substituted for NAME the internal variable or
               the  environment  variable,  it  is  replaced  by  the   value,
               otherwise  word  is substituted for NAME the internal variable,
               and this expression itself is replaces by word.  But you cannot
               substitute the value for any positional parameter.

       ${NAME?word}
               If  any  value is substituted for NAME the internal variable or
               the  environment  variable,  it  is  replaced  by  the   value,
               otherwise  display  word  and  exit from the shell.  If word is
               omitted, the string ``parameter null or not set'' is  displayed
               in its place.

       ${NAME+word}
               If  any  value is substituted for NAME the internal variable or
               the environment variable, it is replaced by word, otherwise  it
               is replaced by a null.

       ${#NAME}
               It is replaced by the length in characters of the value of NAME
               the internal variable or the environment variable.  If NAME  is
               *  or  @, it is replaced by the number of positional parameters
               instead of the length of characters.

       ${NAME%word}
               It is replaced by the string in which the smallest  portion  of
               the  suffix  matched  by  the  word pattern is deleted from the
               value  of  NAME  the  internal  variable  or  the   environment
               variable.   If  NAME  is  *  or @, each positional parameter is
               replaced.  ( \ is used instead of % on MS-DOS version.)

       ${NAME%%word}
               It is replaced by the string in which the  largest  portion  of
               the  suffix  matched  by  the  word pattern is deleted from the
               value  of  NAME  the  internal  variable  or  the   environment
               variable.   If  NAME  is  *  or @, each positional parameter is
               replaced.  ( \ is used instead of %% on MS-DOS version.)

       ${NAME#word}
               It is replaced by the string in which the smallest  portion  of
               the  prefix  matched  by  the  word pattern is deleted from the
               value  of  NAME  the  internal  variable  or  the   environment
               variable.   If  NAME  is  *  or @, each positional parameter is
               replaced.

       ${NAME##word}
               It is replaced by the string in which the  largest  portion  of
               the  prefix  matched  by  the  word pattern is deleted from the
               value  of  NAME  the  internal  variable  or  the   environment
               variable.   If  NAME  is  *  or @, each positional parameter is
               replaced.

       \c      It indicates a character c itself.  You can  use  it  when  you
               want to use the preceding meta-character as a character with no
               evaluation, such as ~ or $.  You can describe \ itself as "\".
               But, on MS-DOS version, because \ which is used as the pathname
               delimiter must be treat as well as the normal character, %c  is
               expediently used in place of \.

       The  following  is  replaced  only  in  the  shell which is executed by
       EXECUTE_SH and EXECUTE_FILE.

       `list`  List is executed and this string is replaced  by  its  standard
               output.

       $(list) List  is  executed  and this string is replaced by its standard
               output like as `list`.  This differs from `list` in  the  point
               that  nested  expressions are allowed.  And any meta-characters
               such as quotes in list are evaluated as it is.

       $((expression))
               Expression the arithmetic  expression  is  evaluated  and  this
               string  is  replaced  by  its  result  value.   You can specify
               numeric values, variables and integral  calculations  with  the
               following operators in expression.
                                     (unary) (binary)
                   arithmetic        + -     + - * / %
                   boolean           !       == != < > <= >= && ||
                   bit operator      ~       & | ^ << >>
                   parenthesis       ( )

       ?
       [
       ]       The  string  including  these  letters  is pattern-matched with
               existent files.  When it is matched, it is replaced by  all  of
               the matched filenames which are sorted in alphabetical order.
               ?    Match any single character except /.
               [...]
                    Match  any  one  of  the characters enclosed by [ ].  When
                    enclosed characters include -, it  matches  any  character
                    whose character code is between characters before/after -.
               [!...]
                    Match any one of the characters not enclosed by [ ].

               don't match it.

   Edit Mode
       When you want to use some functions bound to special keys,  such  as  a
       cursor key or a scroll key, such a key doesn't exist in some terminals.
       In such a case, substituting  the  string  for  EDITMODE  the  internal
       variable  can  make  you  use some control keys as alternative to these
       special keys.  Since this alternative key function is prior to the  key
       binding  by  the  builtin  command,  the key binding is invalid for the
       control characters used as the alternative  keys.   The  prepared  edit
       modes are the following 3 modes.

       emacs
                   ^P   = Up      ^A   = Beg
                   ^N   = Down    ^E   = Eol     ^D   = Del
                   ^F   = Right                  ^Q   = InsLine
                   ^B   = Left                   ^K   = DelLine
                   ^V   = PageDn  ^Y   = PageUp  ^O   = Enter
                   ^M   = Return  ^I   = Tab     ^H   = Bs
                   ^[   = Esc     ^G   = Esc

       wordstar
                   ^E   = Up      ^A   = Beg     ^V   = Ins
                   ^N   = Down    ^F   = Eol     ^G   = Del
                   ^F   = Right   ^W   = Home    ^]   = InsLine
                   ^S   = Left    ^Z   = End     ^Y   = DelLine
                   ^C   = PageDn  ^R   = PageUp  ^N   = Enter
                   ^M   = Return  ^I   = Tab     ^H   = Bs
                   ^[   = Esc

       vi      Vi  mode  has  the  2  local  modes: "insert mode" and "command
               mode", and the function of keys are quite different  with  each
               mode.   You  are  in  the command mode when you start to input,
               then you must input any key among 4 keys which  switch  to  the
               insert mode, in order to input normal keys.
                   (command mode)
                   k    = Up      0    = Beg
                   j    = Down    $    = Eol     x    = Del
                   l    = Right   g    = Home
                   h    = Left    G    = End     D    = DelLine
                   ^F   = PageDn  ^B   = PageUp  o    = Enter
                   ^M   = Return  ^I   = Tab     ^H   = Bs
                   ^[   = Esc
                   (from command mode to insert mode)
                   i, : = only switch its mode
                                  I    = + Beg
                   a    = + Right A    = + Eol
                   R    = overwrite
                   r    = overwrite once
                   (insert mode)
                   ^V   = InsLine Esc  = to command mode

               This  key  binding is so particular that it is not suitable for
               those who don't use vi editor everyday.

   Kana-Kanji IME (UNIX)
       You can input strings in the Kana-Kanji IME mode, if you input the  key
       specified by IMEKEY or select "Kanji" from the pseudo terminal menu.

       The  translation  performance will depend on the Kana-Kanji translation
       dictionary fd-dict.tbl.  When it does not exist in the  same  directory
       as  the  invoked fd exists, translation to Kanji will not be available.
       The standard installed dictionary file  is  the  Tan-Kanji  dictionary,
       which  can support only the Tan-Kanji translation.  The dictionaly such
       as the pubdic, which includes the Hinsi information, will bring you the
       Tan-Bunsetsu  translation.   The  Ren-Bunsetsu  translation  is  not be
       supported.

       In the Kana-Kanji IME mode, the following key inputs are available.
              Space     Trancelate to Kanji, or select  the  next  translation
                        candidate.
              Left, Right
              Up, Down  Move   a   cursor  in  the  list  of  the  translation
                        candidate.
              Bs, Del   Delete a character before the cursor position.
              Tab       Toggle Hiragana, Katakana, Hankaku-Kana and the direct
                        input.
              ^L        Redraw the input string.
              Return    Decide the translation result.
              Esc       Cancel.

       When  you  translate  the  string  of  the  capital 4 digit hexadecimal
       prefixed by a capital letter, it is regarded as the hexadecimal showing
       the following Kanji code respectively.  Then the menu will be displayed
       to select Kanji next to the Kanji code number.
              S   Shift JIS
              E   EUC-JP
              J   JIS code (JIS X0208)
              K   Kuten code
              U   UNICODE (UCS2)
       When you input [Space] in the state where you decide  an  un-translated
       Kana,  it  is  regarded as the initial reading of Kanji.  Then the menu
       will be desplayed to select Kanji whose reading starts with the Kana.

   Parameter Macros
       You can use the following parameter macros in the string which is  used
       for the registration of command macros and for executing command.  But,
       you cannot use them  in  the  functions,  the  input  file  for  source
       command,  and  the  initial  configuration  file,  then  you should use
       evalmacro command when you want to use any parameter macro in them.

       %C      The filename on the cursor  position.   Or,  it  indicates  the
               archive  filename,  in  the  macro  to  register  the  archiver
               command.

       %X      The filename except its extension on the cursor position.   Or,
               it  indicates the archive filename except its extension, in the
               macro to register the archiver  command.   Only  the  last  one
               extension is removed.  T, TA, M trailing %X are replaced by %T,
               %TA, %M except its extension respectively.  On MS-DOS  version,
               you can describe a trailing S as well as them.

       %P      The pathname of the current directory.

       %K      Prompt  and return to fd after a command is finished.  But, the
               meaning of %K is reverse in  EXECUTE_FILE  and  EXECUTE_SH;  it
               prompts  by default and doesn't prompt if %K is specified.  You
               can never specify to prompt in macros to register  the  archive
               browser  of  the  launcher  and macros to register the archiver
               command.

       %T      List marked files separated by spaces as possible.  When  files
               are  so  many  that  the  command  line  length  exceeds the OS
               limitation, the rest of marked files are ignored.

       %TA     List marked files as well as %T, and repeat  the  same  command
               for spilt files to complete all marked files.

       %M      Execute the same command as many times as marked files, sending
               the marked file one by one.  It is  useful  to  mark  files  by
               MARK_FIND and execute "mv %M %XM.bak" by EXECUTE_SH.

       %N      Restrain  the  filename  addition  even  if  the  parameter  is
               omitted.

       %R      Make you input the additional parameter in executing  a  macro,
               if  the length of command string has enough margin.  The cursor
               position in input is placed on the position of %R in  a  macro.
               But, %R is ignored in macros to register the archive browser of
               the launcher, macros to  register  the  archiver  command,  and
               EXECUTE_FILE, EXECUTE_SH.

       %S      The  8+3  formed filename with which the LFN formed filename on
               the cursor position is replaced.  You can use it when  you  use
               external  commands  which  can treat only 8+3 formed arguments.
               T, TA, M trailing %S can be described as well as %X.  (DOS)

       %JS     The Kanji  code  of  the  string  enclosed  by  this  macro  is
               converted into Shift JIS.  (UNIX)

       %JE     The  Kanji  code  of  the  string  enclosed  by  this  macro is
               converted into EUC-JP.  (UNIX)

       %J7     The Kanji  code  of  the  string  enclosed  by  this  macro  is
               converted into 7bit JIS.  (UNIX)

       %J8     The  Kanji  code  of  the  string  enclosed  by  this  macro is
               converted into 8bit JIS.  (UNIX)

       %JJ     The Kanji  code  of  the  string  enclosed  by  this  macro  is
               converted into ISO-2022-JP.  (UNIX)

       %JH     The  Kanji  code  of  the  string  enclosed  by  this  macro is
               converted into HEX.  (UNIX)

       %JC     The Kanji  code  of  the  string  enclosed  by  this  macro  is
               converted into CAP.  (UNIX)

       %JU     The  Kanji  code  of  the  string  enclosed  by  this  macro is
               converted into UTF-8.  (UNIX)

       %JM     The Kanji  code  of  the  string  enclosed  by  this  macro  is
               converted into UTF-8 for Mac OS X.  (UNIX)

       %JI     The  Kanji  code  of  the  string  enclosed  by  this  macro is
               converted into UTF-8 for iconv, which is used  on  environments
               using iconv-based UTF-8 such as Linux.  (UNIX)

       %JA     The  Kanji  code  of  the  string  enclosed  by  this  macro is
               converted into the Kanji code which is  used  in  the  pathname
               indicated by the string.  The variables SJISPATH, EUCPATH, etc.
               can specify what kanji code is used in each pathname.  (UNIX)

       When no filename parameter, such as %C and %T, is taken with the result
       to  expand  parameter  macros  in  a command macro, the filename on the
       cursor position is automatically added to the last of expanded  string,
       as  ./filename  form.   This addition is not done, in case of the input
       string for executing command, or when %N macro is specified.

   Customize
       You can customize fd as  the  following  ways.   If  you  specify  some
       configuration in multiple ways overlapped, it is prior in this order.

          Executing builtin commands with EXECUTE_SH
                    You can execute builtin commands for each registration for
                    the internal variable definition, the environment variable
                    definition, the alias definition, the function definition,
                    the  key  binding,  the  keymap  changing,  the   launcher
                    registration,  the  archiver command registration, and the
                    floppy drive registration.

          Customizer
                    EDIT_CONFIG command is available for the internal variable
                    definition,  the  key  binding,  the  keymap changing, the
                    launcher registration, the archiver command  registration,
                    and the floppy drive registration.

          Command line options
                    You  can specify the command line options as `-NAME=value'
                    form, to define the internal variables.

          .fd2rc    You can prepare the initial configuration file  .fd2rc  on
                    your  home  directory,  to  execute  the  command which is
                    written in this file, before the startup of fd.   You  can
                    describe  builtin  commands and external commands in it to
                    set up each configuration.  Yet, when fdsh is invoked as a
                    login shell, .fdshrc is read instead of .fd2rc.

                    The   initial   configuration  file  /etc/fd2rc  which  is
                    prepared by  a  system  administrator  is  read  preceding
                    .fd2rc  and  .fdshrc.   If  this  file exists, the initial
                    configurations prepared  by  a  system  administrator  are
                    valid  unless  you intentionally delete them in .fd2rc and
                    .fdshrc.

                    (On MS-DOS  version,  these  filenames  are  $HOMEd2.rc,
                    $HOMEdsh.rc and ~FDd2rc.)

          Environment variables
                    Any  valid  variable  name as the internal variable can be
                    valid  to  be  defined  as  the  environment  variable  in
                    advance.  But the internal variable is always prior to the
                    environment  variable  in  fd.   When   the   same   named
                    environment  variable  is used in another application, you
                    can also use the  name  which  FD_  is  prefixed  to  each
                    environment   variable  for  fd  only.   This  environment
                    variable with FD_  is  always  prior  to  the  environment
                    variable   without   it,   then   the  definition  of  the
                    environment variable with FD_ is prior to  the  definition
                    of the internal variable without FD_.

   Customizer
       EDIT_CONFIG  command  invokes  the  customizer to set up configurations
       interactively.  You can select the category with the right/left  cursor
       key,  and  select  the item with the up/down cursor key, and change its
       content with [Return].  When  you  finish  to  change,  exit  from  the
       customizer with [Esc].

       The following categories are prepared.
          Variables Change  the value of internal variables.  The input method
                    is different with the  variable,  then  you  should  input
                    following the guidance on screen.
          Key bind  Change the command bound to each key.  When you newly bind
                    a command to the key with no binding,  you  should  select
                    "NewEntry".  If you select "Delete bind", the existent key
                    binding is deleted.
          Key map   Change the key code mapping for each special key.  If  you
                    push  [Esc]  when  you  are  prompted to push the key, the
                    existent key mapping is deleted.  (UNIX)
          Launcher  Change the launcher registration for each extension.  When
                    you  newly  register  a launcher for the extension with no
                    registration, you should select "NewEntry".  If you  input
                    a null line when you input a command for the launcher, the
                    existent launcher registration is deleted.
          Archiver  Change  the  archiver  command   registration   for   each
                    extension.  When you newly register a archiver command for
                    the extension with  no  registration,  you  should  select
                    "NewEntry".   If you input a null line both when you input
                    a command for pack/unpack, the existent  archiver  command
                    registration is deleted.
          DOS drive Change  the  floppy  drive  registration.   When you newly
                    register a  floppy  drive  for  the  drive  name  with  no
                    registration,  you should select "NewEntry".  If you input
                    a null line when you input a  device  name,  the  existent
                    floppy drive registration is deleted.  (UNIX)
          Save      Save the configurations changed with the customizer into a
                    file, or cancel configurations to restore to the  previous
                    state.
                    Cancel    Cancel  the  changed  configurations  within the
                              specified categories, and restore to  the  state
                              before the customizer is invoked.
                    Clear     Cancel   all   the   configurations  within  the
                              specified categories, and restore to the default
                              state.
                    Load      Load configurations from the specified file.
                    Save      Save all the configurations within the specified
                              categories to the specified file.
                    Overwrite Overwrite  all  the  configurations  within  the
                              specified  categories  to the specified existent
                              file.  The  original  configurations  which  has
                              existed   in   the  file  are  parsed,  and  the
                              configuration for the same target is overwritten
                              at    the   same   place   as   possible.    The
                              configurations which are not set up  at  present
                              and  the  configurations which are not supported
                              by the customizer are remains as it is.

                    When you specify the range of categories,  all  categories
                    are  selected by default, then you should turn on/off each
                    selection with [Space] and decide with [Return].

       If you try to exit from the customizer without  saving  after  changing
       any configuration, you will be confirmed whether if it is right to exit
       without saving.  While the changed configurations themselves are  valid
       even  if you exit without saving, when you want them to be valid in the
       next invoked fd, you must save  them  into  the  initial  configuration
       file.

ENVIRONMENT VARIABLES

       The following environment variables are valid in fd.  These environment
       variables can be valid if they are defined as the  internal  variables.
       You can specify them as the command line options in `-NAME=value' form.
       But the variables followed by ∗ cannot be use with the  prefix  FD_  as
       the environment variables.

       ADJTTY        Reset  the  terminal  mode  forcedly to the normal state,
                     when fd is finished.  Invoking fd can adjust the terminal
                     rightly from the state displaying broken characters.  Any
                     value except 0 and null effects valid.  (UNIX)

       ANSICOLOR     Colorize the file display.  When the terminal  which  you
                     use  supports  the  color control escape sequence of ANSI
                     standard, each file is displayed with color according  to
                     its  file  type.  If the value is 1, it is colorized.  If
                     the value is 2, the background  color  is  forced  to  be
                     black, for the case that the foreground color is the same
                     as the background color and  indistinguishable.   If  the
                     value is 3, the foreground color is forced to be black.

       ANSIPALETTE   Specify  color  palette  according  to file type when the
                     file display is colorized.  This variable value  consists
                     of  a numeric value whose maximum columns are 11 columns.
                     The number of each column shows  a  color  number,  which
                     specifies  the  color of file type corresponding with its
                     column.  The following are correspondence of  the  column
                     number to the file type.
                         1    normal file
                         2    background
                         3    directory
                         4    unwritable file
                         5    unreadable file
                         6    symbolic link
                         7    socket (or system file on MS-DOS)
                         8    FIFO (or label on MS-DOS)
                         9    block device
                         10   character device
                         11   executable file

                     The  following  are the meaning of color number specified
                     on each column.
                         0    black
                         1    red
                         2    green
                         3    yellow
                         4    blue
                         5    magenta
                         6    cyan
                         7    white
                         8    default color for foreground
                         9    default color for background

                     The color number 8 is forced to be black, if the value of
                     ANSICOLOR  the  variable  is  3.   The  color number 9 is
                     forced to  be  black,  if  the  value  of  ANSICOLOR  the
                     variable is 2.

                     When the columns are less than 11 or this variable is not
                     set, the standard color palette will be applied  for  the
                     file  type corresponding with the following columns.  The
                     standard color palette is described with the above  color
                     number as 89624351888.

       AUTOUPDATE    Specify  the  interval in seconds to update automatically
                     the browser screen or the  tree  screen.   When  the  key
                     input  idles  for  the  specified  seconds,  the  current
                     information of file list will be updated.  If this  value
                     is  0,  the screen will never updated automatically.  The
                     default value is 0.

       BASICCUSTOM   Limit the internal variables for  configuration  only  to
                     basic  variables  in  the  customizer,  to  hide advanced
                     variables.  Any value except 0 and null effects valid.

       CDPATH∗       Specify the search  path  when  an  argument  of  cd  the
                     builtin  command  does not start with /.  You can specify
                     multiple paths separating with ':'.  No  search  path  is
                     specified by default.

       COLUMNS∗      The  variable  for  the columns of a terminal screen.  If
                     some  value  is  set,  this  value   will   be   replaced
                     automatically  according to changing the screen size.  If
                     no value is set, this value will remain unset.

       COMSPEC       Specify the shell  used  to  invoke  a  batch  file.   If
                     undefined,  the  shell  defined  by  SHELL  the  internal
                     variable or \COMMAND.COM is used.  (DOS)

       COPYCMD∗      Specify the default options  used  by  copy  the  builtin
                     command.

       DEFCOLUMNS    Specify  the  columns  displayed in the screen when fd is
                     invoked.  The default value is 2.   If  you  specify  the
                     value except 1, 2, 3 and 5, it is ignored.

       DEFKCODE      Specify  the  system  default  Kanji code.  The arguments
                     passed to external  commands  invoked  from  fd  will  be
                     converted  into  the  specified Kanji code.  When you use
                     macros such as %C and %JJ, it will be converted into  the
                     Kanji  code  according  to each macro.  JIS8, JUNET, HEX,
                     CAP, etc. among them are the Kanji codes used  in  Samba.
                     (UNIX)
                         SJIS, sjis     Shift JIS
                         EUC, euc       EUC-JP
                         JIS, jis       7bit JIS
                         JIS8, jis8     8bit JIS
                         JUNET, junet   ISO-2022-JP
                         OJIS, ojis     7bit JIS (JIS C6226-1978 + roman)
                         OJIS8, ojis8   8bit JIS (JIS C6226-1978 + roman)
                         OJUNET, ojunet ISO-2022-JP (JIS C6226-1978 + roman)
                         HEX, hex       HEX
                         CAP, cap       CAP
                         UTF8, utf8     UTF-8
                         UTF8-mac, mac  UTF-8 for Mac OS X
                         UTF8-iconv     UTF-8 for iconv
                         default        no convert

       DIRCOUNTLIMIT Specify  the  maximum  number  of  files  read  from  the
                     directory in the tree screen.  When the directory trailed
                     by  '>'  has no sub directory, the expanded result is not
                     changed.  If the number of files (including  directories)
                     in the directory is within this value, the directory with
                     no sub directory is  not  trailed  '>'  from  the  first.
                     Moreover, the file list in the directory displayed on the
                     right of screen is not displayed  over  this  value.   If
                     this  value is 0, you can realize a comfortable operation
                     speed even in the slow machine.  The default value is  50
                     files.

       DIRCMD∗       Specify  the  default  options  used  by  dir the builtin
                     command.

       DIRHIST       Specify the maximum number  of  the  directory  histories
                     which  can  be referred by the directory input line.  The
                     default value is 50.  If this value is 0, you  can  refer
                     to no directory history.

       DIRHISTFILE   Specify  the name of the directory history file which can
                     be referred by the  directory  input  line.   Unless  you
                     specify  it,  the  directory  history  is  not loaded nor
                     saved.  The default value is not specified.

       DIRHISTUMASK  Specify the file creation mask with octal expression  for
                     the  directory  history  file.   It  is  used  only if no
                     existent file exists.  But the mask value  set  by  umask
                     the  builtin  command is prior, then actual mask value is
                     the logical OR of this value and umask value.

       DISPLAYMODE   Specify the filename display mode of the file  list  when
                     fd  is invoked.  Each of the symbolic link mode, the file
                     type symbol mode and the dot file  display  mode  can  be
                     selected  individually.   The  default  value  is 0.  The
                     following are specifiable values.
                         0    standard
                         1    SYMLINK
                         2                FILETYPE
                         3    SYMLINK &   FILETYPE
                         4                             DOTFILE
                         5    SYMLINK &                DOTFILE
                         6                FILETYPE &   DOTFILE
                         7    SYMLINK &   FILETYPE &   DOTFILE

                     Moreover, on the OS which supports the file flag, if  you
                     specify  the value adding 8 to each value, you can select
                     the file flag display mode.

       DOSDRIVE      Validate the access function to the MS-DOS floppy.  If no
                     floppy  drive  is registered, this validation cannot make
                     you access the floppy.   Any  value  except  0  and  null
                     effects valid.

                     On MS-DOS version, This definition can make you treat the
                     LFN formed filename in the old DOS before Ver. 6.xx.   In
                     this  case,  you don't have to register any floppy drive.
                     the access speed may be slow or  some  functions  may  be
                     restricted  for the reason to operate the disk I/O not by
                     way of OS.

       DUMBSHELL     Don't use any control sequences to edit command  line  in
                     the  internal  shell.   In the internal shell, the cursor
                     addressing of terminal mode is not  valid.   In  case  of
                     some  terminal  such  as  a  console terminal, the cursor
                     addressing cannot work correctly in this  terminal  mode,
                     and  the  editing  string is displayed incorrectly.  When
                     this variable is valid, while no control sequence is used
                     to  edit  command  line, an inefficient cursor addressing
                     will cause restriction of some functions and  failure  of
                     response.  Any value except 0 and null effects valid.

       EDITMODE      Specify  the  edit  mode of key input as the string.  The
                     default value is emacs.  The value except emacs, wordstar
                     and  vi  or  null are specified, any control character is
                     not converted and will be sent as it is.

       EDITOR        Specify the editor command used for editing files.

       ENV∗          Specify the additional initial  configuration  file  when
                     invoked  as  fdsh.   You  must  specify  its  filename as
                     fullpath.   When  this  variable  is  set,  the   initial
                     configuration  file  is read after /etc/fd2rc, and before
                     .fd2rc or .fdshrc.  This value will be  ignored  if  your
                     real  and  effective  UIDs or real and effective GIDs are
                     different.

       FCEDIT        Specify the  editor  command  used  for  fc  the  builtin
                     command.

       FD_VERSION    A version string of the running fd.

       FNAMEKCODE    Specify  the  Kanji  code  for filename.  Any filename is
                     converted into the specified Kanji code at the  point  of
                     accessing  the file, then you can refer to the file which
                     has a Kanji filename  from  another  machine  on  network
                     which  use  a  different Kanji code.  The archive browser
                     and browse the builtin command also refer  the  specified
                     Kanji  code.   JIS8, JUNET, HEX, CAP, etc. among them are
                     the Kanji codes used in Samba.  (UNIX)
                         SJIS, sjis     Shift JIS
                         EUC, euc       EUC-JP
                         JIS, jis       7bit JIS
                         JIS8, jis8     8bit JIS
                         JUNET, junet   ISO-2022-JP
                         OJIS, ojis     7bit JIS (JIS C6226-1978 + roman)
                         OJIS8, ojis8   8bit JIS (JIS C6226-1978 + roman)
                         OJUNET, ojunet ISO-2022-JP (JIS C6226-1978 + roman)
                         HEX, hex       HEX
                         CAP, cap       CAP
                         UTF8, utf8     UTF-8
                         UTF8-mac, mac  UTF-8 for Mac OS X
                         UTF8-iconv     UTF-8 for iconv
                         default        no convert

       FREQFILE      Specify the translation  frequency  file  for  the  users
                     Kana-Kanji  translation learning.  If the filename is not
                     defined, the frequency information will not be saved  nor
                     be referred.  The default value is ~/.fd_freq.  (UNIX)

       FREQUMASK     Specify  the file creation mask with octal expression for
                     the translation frequency file for the  users  Kana-Kanji
                     translation  learning.  The updated translation frequency
                     file will be rebuilt, not be overwritten, so that  it  is
                     used  even  if  existent file exists.  But the mask value
                     set by umask the builtin command is  prior,  then  actual
                     mask  value  is  the  logical  OR of this value and umask
                     value.  (UNIX)

       FTPADDRESS    Specify  the  mail  address  used  as  the  password  for
                     anonymous  FTP, when the URL drive connects the FTP host.
                     The default value is FDclone@.  (UNIX)

       FTPLOGFILE    Specify the filename  to  which  communication  logs  are
                     outputted,  when  the URL drive communicates with the FTP
                     host.  If it is not specified as fullpath nor  you  don't
                     prepare the directory in which the log file is stored, no
                     log will be outputted.  (UNIX)

       FTPPROXY      Specify the URL used as the proxy server,  when  the  URL
                     drive   connects   the  FTP  host.   The  URL  format  is
                     scheme://[user[:password]@]host[:port].  You can  specify
                     ftp   or   http  as  scheme.   You  can  specify  account
                     information to connect  the  proxy  server  as  user  and
                     password.  The default value is not specified.  (UNIX)

       FUNCLAYOUT    Specify the layout of the function line, as the form of n
                     * 100 + size.  N means the number of function keys to  be
                     displayed  in  the  function  line.  Size means the block
                     size of function keys to be displayed.  The default value
                     is 1005.  (It means 10 function keys will be displayed, 5
                     of which are grouped.)

       HIDEPASSWD    Suppress displaying * as a replacement for  the  inputted
                     letter,  when  the  URL  drive  requires  you  to input a
                     password.  Any value except 0  and  null  effects  valid.
                     (UNIX)

       HISTFILE      Specify the name of the command history file which can be
                     referred by  EXECUTE_FILE  and  EXECUTE_SH.   Unless  you
                     specify  it, the command history is not loaded nor saved.
                     The default value is ~/.fd_history.

                     (On MS-DOS version, The default value is $HOMEd.hst.)

       HISTSIZE      Specify the maximum number of the command histories which
                     can  be  referred  by  EXECUTE_FILE  and EXECUTE_SH.  The
                     default value is 50.  If this value is 0, you  can  refer
                     to no command history.

       HISTUMASK     Specify  the file creation mask with octal expression for
                     the command history file.  It is used only if no existent
                     file exists.  But the mask value set by umask the builtin
                     command is prior, then actual mask value is  the  logical
                     OR of this value and umask value.

       HOME∗         Specify  the  default  value  when  no argument of cd the
                     builtin command is specified.  When invoked  as  a  login
                     shell,  if  this  variable  is  specified  that directory
                     becomes  the  current  directory,  otherwise  your   home
                     directory is automatically defined as this value.

       HTMLLOGFILE   Specify  the filename to which received HTML data log are
                     outputted, when the URL drive communicates with the  HTTP
                     host.   If  it is not specified as fullpath nor you don't
                     prepare the directory in which the log file is stored, no
                     log will be outputted.  (UNIX)

       HTTPLOGFILE   Specify  the  filename  to  which  communication logs are
                     outputted, when the URL drive communicates with the  HTTP
                     host.   If  it is not specified as fullpath nor you don't
                     prepare the directory in which the log file is stored, no
                     log will be outputted.  (UNIX)

       HTTPPROXY     Specify  the  URL  used as the proxy server, when the URL
                     drive  connects  the  HTTP  host.   The  URL  format   is
                     scheme://[user[:password]@]host[:port].   You can specify
                     http as scheme.  You can specify account  information  to
                     connect  the  proxy  server  as  user  and password.  The
                     default value is not specified.  (UNIX)

       IFS∗          Specify the internal field separators.  They are used  in
                     EXECUTE_SH to separate command and arguments.  Space, tab
                     and newline are specified by default.

       IGNORECASE    Ignore uppercase/lowercase when filenames  are  compared.
                     Any value except 0 and null effects valid.  (UNIX)

       IMEBUFFER     Specify  whether  if  the Kana-Kanji translation table is
                     held on memory or not.  It  will  be  fast  to  translate
                     strings  from  Kana to Kanji.  You should set this if you
                     have  enough  memory.   The  following  are   specifiable
                     values.  (UNIX)
                         0    not hold on memory
                         1    only the Hinsi information table
                         2    also includes the index tables
                         3    hold all tables

       IMELEARNING   Specify the learning level with the translation frequency
                     file for the users Kana-Kanji translation learning.   The
                     larger   value   will  increase  the  importance  of  the
                     frequency information.  If the value is 0, the  frequency
                     information  is  only  saved, without any reference.  The
                     default value is 16.  (UNIX)

       IMEKEY        Specify the key to toggle the direct input mode  and  the
                     Kana-Kanji IME mode when you input some strings.  You can
                     describe the same key name as bind command.  The  default
                     value is not specified.  (UNIX)

       INHERITCOPY   Inherit   the   destination  timestamp  from  the  source
                     timestamp when COPY_FILE command is executed.  Any  value
                     except 0 and null effects valid.  (UNIX)

                     (On  MS-DOS  version, the destination timestamp is always
                     inherited, if this variable is effective or not.)

       INPUTKCODE    Specify the Kanji code for input from keyboard.  When the
                     value  except  the following is specified, the Kanji code
                     specified in compile is valid.  (UNIX)
                         SJIS, sjis     Shift JIS
                         EUC, euc       EUC-JP
                         UTF8, utf8     UTF-8
                         UTF8-mac, mac  UTF-8 for Mac OS X
                         UTF8-iconv     UTF-8 for iconv

       LANGUAGE      Specify the language for display character.  It means not
                     only each messages displayed by fd, but also a Kanji code
                     of filename to be converted.  The following is  the  kind
                     of languages, it doesn't have to be the string itself and
                     is enough to contain the string, the value  of  LANG  the
                     environment variable also can be used.  JIS8, JUNET, etc.
                     among them are the Kanji codes used in Samba.
                         SJIS, sjis     Shift JIS
                         EUC, euc       EUC-JP
                         JIS, jis       7bit JIS
                         JIS8, jis8     8bit JIS
                         JUNET, junet   ISO-2022-JP
                         OJIS, ojis     7bit JIS (JIS C6226-1978 + roman)
                         OJIS8, ojis8   8bit JIS (JIS C6226-1978 + roman)
                         OJUNET, ojunet ISO-2022-JP (JIS C6226-1978 + roman)
                         UTF8, utf8     UTF-8
                         UTF8-mac, mac  UTF-8 for Mac OS X
                         UTF8-iconv     UTF-8 for iconv
                         en, C, POSIX   English (message only)
                         default        no convert

                     (On MS-DOS version, only the English is valid.)

       LINENO∗       Indicate the current line number.  When not in  a  script
                     nor  function,  this  value  cannot be guaranteed to make
                     sense.  If you unset or reset this value,  this  variable
                     will  lose its special meaning to be treated as a general
                     variable.

       LINES∗        The variable for the lines of a terminal screen.  If some
                     value  is  set, this value will be replaced automatically
                     according to changing the screen size.  If  no  value  is
                     set, this value will remain unset.

       LOGFILE       Specify  the  log  filename  with  the level spacified by
                     LOGLEVEL or ROOTLOGLEVEL.  If  it  is  not  specified  as
                     fullpath, it will be regarded as the path under your home
                     directory.  You must prepare the directory in  which  the
                     log  file  is  stored,  because  any  directories are not
                     created  automatically.   The  default   value   is   not
                     specified.

       LOGLEVEL      Specify  the  priority for the log contents.  The default
                     value is 0.
                         0       no log
                         1       only warning such as writing
                         2       notice such as changing, and over
                         3       info. such as refering, and over
                         >= 4    debug level, and over

                     The same operation can result as an error to  output  the
                     log in the lower priority by 1 level.

       LOGSIZE       Specify  the  maximum  kilobyte  size  for  the  log file
                     specified by LOGFILE.  If the size  exceeds  this  value,
                     the  last  log  file  will  be  renamed  as  the filename
                     followed by the extension .old to create another new  log
                     file.   The default value is 1024(1MB).  If this value is
                     0, the log file will not be renamed.

       LOOPCURSOR    Loop a cursor moving within the same page, when you  move
                     a cursor.  Any value except 0 and null effects valid.

       MAIL∗         Specify  the  spool filename when the internal shell will
                     check new mails.  If MAILPATH is  set,  it  is  prior  to
                     this.  (UNIX)

       MAILCHECK∗    Specify  the  interval  of checking new mails in seconds,
                     for the spool files specified by MAILPATH or  MAIL.   The
                     default  value  is  600  seconds.  If this value is 0, it
                     will be checked before each prompt.  (UNIX)

       MAILPATH∗     Specify  the  multiple  spool  filenames,  as  the   list
                     separated  by  :,  when the internal shell will check new
                     mails.  The any specified files will  be  checked.   Each
                     filenames  can  be followed by % and a arrival message of
                     new mails.  The default message is you have mail.  (UNIX)

       MESSAGELANG   Specify the language for display character.  The language
                     of  messages  specified  by this will be prior to the one
                     specified by LANGUAGE.  When the message is Japanese, the
                     Kanji code will be defined by the value of LANGUAGE.  The
                     following is the kind of languages, it doesn't have to be
                     the  string  itself  and is enough to contain the string,
                     the value of LANG the environment variable  also  can  be
                     used.   Otherwise,  In  case  of  some additional message
                     catalogs are prepared, you can specify its  extension  as
                     the catalog name for MESSAGELANG to replace messages.
                         en, C, POSIX   English
                         ja             Japanese
                         default        the value of LANGUAGE

       MINFILENAME   Specify  the minimum character length of filename display
                     area in the file  list.   When  the  area  enough  to  be
                     specified  here  cannot  be  obtained, the information is
                     reduced in the order of UID, GID, timestamp,  size.   The
                     default value is 12 characters.

       OPTARG∗       An  option argument is substituted in getopts the builtin
                     command.

       OPTIND∗       Specify the index of the next parameter  in  getopts  the
                     builtin command.

       PAGER         Specify the pager command used for viewing files.

       PATH∗         Specify  the search path for executing external commands.
                     You can specify multiple paths separating with ':'.

       PPID∗         Indicate the process ID of the  parent  proccess  for  fd
                     which is invoked first.  (UNIX)

       PRECEDEPATH   Specify  the file preceding function, which displays only
                     filenames before obtaining their  file  information,  for
                     the directory which has a lot of files like as /dev.  You
                     can specify multiple pathnames separating with ':'.   You
                     are  enough  to  specify only the top directory where you
                     want to realize the file  preceding  function,  then  the
                     file   preceding   function   is  valid  in  all  of  the
                     directories  under  that  directory.    When   the   file
                     preceding function is effective, any files are not sorted
                     in that directory, and file information is obtained  file
                     by  file  while  waiting  the  key input.  No pathname is
                     specified by default.

       PRECOPYMENU   Display the menu in advance, which ask you  what  do  you
                     want  with the same named files and the restricted files,
                     when you copy, move, or delete multiple files.   In  case
                     of  too  many  target  files, it avoids the occurrence of
                     query after waiting for a moment.  Any value except 0 and
                     null effects valid.

       PROGRESSBAR   Display  the  progress bar, which indicates the progress,
                     when you copy, move, or delete files.  It needs the  time
                     to  calculate the progress, to make the processing time a
                     little longer than no progress bar.  Any value  except  0
                     and null effects valid.

       PS1           Specify  the  prompt  string of input line in EXECUTE_SH.
                     The  default  value  is  "$ ".   The   following   escape
                     sequences are available.
                         \u   username (UNIX)
                         \h   hostname (UNIX)
                         \H   hostname (including domain name) (UNIX)
                         \w   fullpath of current directory
                         \~   fullpath of current directory
                              (to simplify home directory with ~)
                         \W   current directory name
                         \!   command history number
                         \$   if UID is 0, a #, otherwise a $ (UNIX)
                         \[   beginning of non-printing sequence
                              (terminal control character etc.)
                         \]   ending of non-printing sequence
                            ESC ()
                         \ooo character indicated by the octal ooo
                         \   \ itself

       PS2           Specify  the  prompt string when more continuous input is
                     needed in EXECUTE_SH.  The default value is "> ".

       PS4∗          Specify the prompt string with which command strings  are
                     displayed when you do set -x.

       PTYINKCODE    Specify  the  Kanji  code  for  the  string passed to the
                     pseudo terminal.  The string, which is converted from the
                     Kanji  code  specified  by  INPUTKCODE  to the Kanji code
                     specified by this command, is inputted to  any  processes
                     running  on  the  pseudo terminal.  This variable has the
                     individual value for each pseudo terminal,  so  that  you
                     should  change  value  of  the  variable  on  the  pseudo
                     terminal to change the input Kanji  code  of  the  pseudo
                     terminal running already.  (UNIX)
                         SJIS, sjis     Shift JIS
                         EUC, euc       EUC-JP
                         UTF8, utf8     UTF-8
                         UTF8-mac, mac  UTF-8 for Mac OS X
                         UTF8-iconv     UTF-8 for iconv
                         default        no convert

       PTYMENUKEY    Specify  the  key  to open the pseudo terminal menu while
                     you are handling the pseudo terminal.  You  can  describe
                     the  same  key  name as bind command.  You can select the
                     following items in the pseudo terminal menu:  "SendAsIs",
                     "InputCode",  "Break",  "NextWindow"  and  "Kanji".  Each
                     item means respectively: sending the pseudo terminal menu
                     key as is, inputting the key name to be sent, terminating
                     forcedly the process  running  in  the  pseudo  terminal,
                     changing to the next window, invoking the Kana-Kanji IME.
                     In "InputCode", you can use the key  name  like  as  bind
                     command, and also the Kanji code number used in the Kana-
                     Kanji IME mode.  But you cannot  select  "NextWindow"  in
                     the  non-split  window  mode.   The  default value is not
                     specified.  (UNIX)

       PTYMODE       Use the pseudo terminal to invoke external commands.   In
                     the  split  window mode, the independent pseudo terminals
                     for every windows will be opened and enable you to handle
                     simultaneously  multiple external commands via terminals.
                     If the terminal in use can  not  provide  some  functions
                     required  for the terminal emulation, the pseudo terminal
                     may not work correctly.  Any  value  except  0  and  null
                     effects valid.  (UNIX)

       PTYOUTKCODE   Specify  the  Kanji  code  for the string passed from the
                     pseudo terminal.  The string, which is converted from the
                     Kanji  code  specified  by this command to the Kanji code
                     specified by LANGUAGE, is displayed  from  any  processes
                     running  on  the  pseudo terminal.  This variable has the
                     individual value for each pseudo terminal,  so  that  you
                     should  change  value  of  the  variable  on  the  pseudo
                     terminal to change the output Kanji code  of  the  pseudo
                     terminal running already.  (UNIX)
                         SJIS, sjis     Shift JIS
                         EUC, euc       EUC-JP
                         UTF8, utf8     UTF-8
                         UTF8-mac, mac  UTF-8 for Mac OS X
                         UTF8-iconv     UTF-8 for iconv
                         default        no convert

       PTYTERM       Specify  the value of TERM the environment variable to be
                     passed to external commands,  when  you  use  the  pseudo
                     terminal.   Some  termcap(5)  or  terminfo(5)  may  cause
                     unexpected behavior of the pseudo  terminal,  you  should
                     specify  the effective terminal name in your environment.
                     The default value is vt100.  (UNIX)

       PWD∗          The variable for the current directory with the  absolute
                     representation.  If some value is set, this value will be
                     replaced automatically according to changing the  current
                     directory.   If  no  value is set, this value will remain
                     unset.  If this is passed as an environment variable when
                     invoked,   and  this  value  and  the  current  directory
                     indicate the same directory logically, then it is used as
                     the  default  value  for  the  current  directory.  It is
                     useful when you want  to  specify  the  logical  pathname
                     following symbolic links.

       ROOTLOGLEVEL  Specify  the  priority  for the log contents of the super
                     user.  The default value is 1.  (UNIX)
                         0       no log
                         1       only warning such as writing
                         2       notice such as changing, and over
                         3       info. such as refering, and over
                         >= 4    debug level, and over

                     The same operation can result as an error to  output  the
                     log in the lower priority by 1 level.

       RRPATH        Display files under the directory mounted by CD-ROM, with
                     the pseudo ISO 9660 RockRidge Extension, for the OS which
                     cannot  support  RockRidge  Extension.   You  can specify
                     multiple mount  points  separating  with  ':'.   You  are
                     enough  to  specify only the top directory mounted by CD-
                     ROM, then the  pseudo  RockRidge  Extension  function  is
                     valid  in  all  of  the directories under that directory.
                     This is no more  than  a  pseudo  extension,  which  only
                     replaces  filenames  according  to  TRANS.TBL, and cannot
                     handle some CD-ROM which has an  inconsistent  TRANS.TBL.
                     No mount point is specified by default.

       SAVEDIRHIST   Specify the maximum number saved to the directory history
                     file.  The default value is 50.  If this value is  0,  no
                     directory history file is saved.

       SAVEHIST      Specify  the  maximum number saved to the command history
                     file.  The default value is 50.  If this value is  0,  no
                     command history file is saved.

       SECOND        Display  the  second in the clock of the title line.  But
                     the clock is adjusted correctly  every  10  seconds,  and
                     some  gap  from  the  real  time will be occurred in this
                     span.  Any value except 0 and null effects valid.

       SHELL         When the filename part of this specified value is rfd  or
                     rfdsh, the shell becomes a restricted shell as well as -r
                     option when invoked.   This  variable  also  specify  the
                     shell which can be invoked from EXECUTE_SH.

       SIZEINFO      Display  the  file  size  information  line at the top of
                     screen.  The total size displayed here is not the sum  of
                     bytes  but  the sum of disk block size occupied actually.
                     Any value except 0 and null effects valid.

       SIZEUNIT      Represent  the  huge  file  size  which   overflows   the
                     displayed  digit with the prefix of the SI unit, as "KB",
                     "MB" and so on.  Any value  except  0  and  null  effects
                     valid.

       SORTTREE      Sort  directories  in  the  tree screen.  The sorted type
                     specified by SORT_DIR is used, but they can not be sorted
                     when  it  is  "by size" or "by timestamp".  The directory
                     included in the current directory path is  always  placed
                     on  the  top  of  directory  tree,  with no regard to the
                     sorted type.  Any value except 0 and null effects valid.

       SORTTYPE      The file list in the browser  screen  is  not  sorted  by
                     default, but placed in order registered in the directory.
                     This variable specify it to be sorted  by  default.   The
                     following are specifiable values.
                         0    not sort
                         1    by filename    9    by filename(reverse)
                         2    by extension   10   by extension(reverse)
                         3    by size        11   by size(reverse)
                         4    by timestamp   12   by timestamp(reverse)
                         5    by length      13   by length(reverse)
                         100-113   keep the last sorted type
                         200-213   keep it also in archive browser

                     If  you  specify  the  value  of  100-113,  it  is sorted
                     according to the value indicated by lower 2  digits  just
                     after  invoked,  the  last  specified sorted type is kept
                     when moving directory.   If  you  specify  the  value  of
                     200-213,  the  last  sort  type  will  be kept also after
                     invoking the archive browser.

       TERM∗         Specity the terminal name.   When  this  value  is  dumb,
                     unknown  or  un,  it  is regarded as the dumb terminal to
                     suppress any escape sequences in the  internal  shell  in
                     spite  of  DUMBSHELL.   If  this  value does not exist in
                     termcap(5) and terminfo(5) entry, it is  executable  only
                     when  it  is  invoked as fdsh.  The terminal name will be
                     variable  dynamically,  then  you  can   re-specify   the
                     suitable one as this value after invoked for some strange
                     terminal display and key input.

       THRUARGS      Pass through the pathnames as is, which is  specified  as
                     the  startup  arguments.   Fd  expands the meta character
                     such as ~ and ${#}  in  the  given  pathname  by  itself,
                     because the obsolete low-level shell cannot support these
                     expansion extended by POSIX.  Fd can sometimes expand the
                     pathname given by the shell into the unexpected string as
                     a result of duplicate expansion, because the latest high-
                     level  shell  generally  support  these  expansion.  This
                     variable will be suppress  the  expansion  of  arguments.
                     Any value except 0 and null effects valid.

       TMPDIR        Specify  the working directory where the archiver command
                     temporarily  unpack  files  in  the  archive  file.   The
                     default value is /tmp.

                     (On MS-DOS version, The default value is `.'.)

       TMPUMASK      Specify  the file creation mask with octal expression for
                     files and directories created temporarily in TMPDIR.  But
                     the mask value set by umask the builtin command is prior,
                     then actual mask value is the logical OR  of  this  value
                     and umask value.

       TRADLAYOUT    Use  the  traditional screen layout based on the original
                     "FD".  In this layout, the file size information will  be
                     always  displayed,  whether SIZEINFO is set or not.  When
                     the  screen  width  is  less  than   80   columns,   this
                     specification  is  invalid.   Any value except 0 and null
                     effects valid.

       UNICODEBUFFER Hold the UNICODE translation table on memory.  It will be
                     fast  to access the floppy drive and to translate from/to
                     UTF-8.  You should set this if you  have  enough  memory.
                     Any value except 0 and null effects valid.

       URLDRIVE      Validate the function of the URL drive.  Any value except
                     0 and null effects valid.  (UNIX)

       URLKCODE      Specify the Kanji code for filename on the host with  the
                     URL  drive.   JIS8,  JUNET, HEX, CAP, etc. among them are
                     the Kanji codes used in Samba.  (UNIX)
                         SJIS, sjis     Shift JIS
                         EUC, euc       EUC-JP
                         JIS, jis       7bit JIS
                         JIS8, jis8     8bit JIS
                         JUNET, junet   ISO-2022-JP
                         OJIS, ojis     7bit JIS (JIS C6226-1978 + roman)
                         OJIS8, ojis8   8bit JIS (JIS C6226-1978 + roman)
                         OJUNET, ojunet ISO-2022-JP (JIS C6226-1978 + roman)
                         HEX, hex       HEX
                         CAP, cap       CAP
                         UTF8, utf8     UTF-8
                         UTF8-mac, mac  UTF-8 for Mac OS X
                         UTF8-iconv     UTF-8 for iconv
                         default        no convert

       URLOPTIONS    Specify  communication  options,  when  the   URL   drive
                     communicates  with the host.  You can select individually
                     whether if PASV, PORT, MDTM, FEAT each commands  for  the
                     FTP  communication  are limited or not, or whether if the
                     exact file information is  need  or  not.   On  the  HTTP
                     protocol,  you  will  get the timestamp and size of files
                     with some rounding error in bulk.  If you need the  exact
                     information,  the  operations by file will spend the more
                     communication  time.   The  default  value  is  0.    The
                     following are specifiable values.  (UNIX)
                         0    standard
                         1    PASV
                         2            PORT
                         3    PASV &  PORT
                         4                    MDTM
                         5    PASV &          MDTM
                         6            PORT &  MDTM
                         7    PASV &  PORT &  MDTM
                         8                            FEAT
                         9    PASV &                  FEAT
                         10           PORT &          FEAT
                         11   PASV &  PORT &          FEAT
                         12                   MDTM &  FEAT
                         13   PASV &          MDTM &  FEAT
                         14           PORT &  MDTM &  FEAT
                         15   PASV &  PORT &  MDTM &  FEAT
                         16                                   HTTP
                         17   PASV &                          HTTP
                         18           PORT &                  HTTP
                         19   PASV &  PORT &                  HTTP
                         20                   MDTM &          HTTP
                         21   PASV &          MDTM &          HTTP
                         22           PORT &  MDTM &          HTTP
                         23   PASV &  PORT &  MDTM &          HTTP
                         24                           FEAT &  HTTP
                         25   PASV &                  FEAT &  HTTP
                         26           PORT &          FEAT &  HTTP
                         27   PASV &  PORT &          FEAT &  HTTP
                         28                   MDTM &  FEAT &  HTTP
                         29   PASV &          MDTM &  FEAT &  HTTP
                         30           PORT &  MDTM &  FEAT &  HTTP
                         31   PASV &  PORT &  MDTM &  FEAT &  HTTP

       URLTIMEOUT    Specify  the  timeout  in  seconds,  when  the  URL drive
                     communicates with the host.  If  the  communication  from
                     the   host   is   lost   for   the  time  specified,  the
                     communication is regarded as invalid and  its  connection
                     will  be  shutdown  forcedly.  If this value is 0 second,
                     the timeout operation  is  invalid  to  continue  waiting
                     response forever.  The default value is 0 second.  (UNIX)

       USEGETCURSOR  Use  the  VT100  compatible  escape  sequence getting the
                     cursor position in order to get the terminal size.   When
                     the  screen  size  of  fd  doesn't  correspond  with  the
                     terminal size, this variable can be sometimes valid.   On
                     some  terminals  which  don't support the escape sequence
                     getting  the  cursor  position,  the  operation  may   be
                     stopped.   In this case, it is continued by inputting 'R'
                     from the keyboard.  Any value except 0 and  null  effects
                     valid.  (UNIX)

       USESYSLOG     Send  the  log  to  syslogd(8) the system logger with the
                     level spacified by LOGLEVEL  or  ROOTLOGLEVEL.   The  log
                     priority   is   LOG_ERR  only  some  errors  are  caused,
                     otherwise the log priority is always LOG_INFO.   LOG_USER
                     is  used  as  the  facirity  if it can be specified.  Any
                     value except 0 and null effects valid.  (UNIX)

       WIDEDIGIT     Widen the displayed digits for the number  of  pages  and
                     files.   The  standard displayed digits for the number of
                     pages and files are 2 and 4 respectively.   This  expands
                     them  into  4 and 5 respectively.  Any value except 0 and
                     null effects valid.

       WRITEFS       Forbid use of WRITE_DIR command.  If the value is 1,  the
                     directory  is  written  only when the command is executed
                     intentionally, and you are not confirmed after  arranging
                     the  file  order.  If the value is 2, even writing by the
                     command  is  invalid,  the  directory  writing  is  quite
                     forbidden.

       SJISPATH
       EUCPATH
       JISPATH
       JIS8PATH
       JUNETPATH
       OJISPATH
       OJIS8PATH
       OJUNETPATH
       HEXPATH
       CAPPATH
       UTF8PATH
       UTF8MACPATH
       UTF8ICONVPATH
       NOCONVPATH    Specify  the Kanji code for filename per directory, which
                     is  prior  to  FNAMEKCODE.   You  can  specify   multiple
                     pathnames separating with ':'.  You are enough to specify
                     only the top directory where you want to  use  the  Kanji
                     code,  then  you  can  use  the  Kanji code in all of the
                     directories under that directory.  In the directory which
                     is  described  in  NOCONVPATH, no Kanji code is converted
                     ignoring  the  value  of  FNAMEKCODE.   No  pathname   is
                     specified by default.  (UNIX)

MULTI LANGUAGE SUPPORT

       Fd  processes  the  Kanji  character-set to input/output as "EUC-JP" or
       "Shift  JIS"  according  to  setting  in  compile.   The  the  pathname
       including  Kanji  is  displayed  in  consideration  for  the  2nd  byte
       character  in  Kanji.   You  can  dynamically  select  Kanji  code   to
       input/output  with  LANGUAGE,  INPUTKCODE  and  FNAMEKCODE the internal
       variable.  You can input Japanese string with the Kana-Kanji IME mode.

       You can use Kanji in the command macro  and  the  command  string,  but
       cannot  use  Kanji  as the value of the internal variables.  You cannot
       use the multibyte symbol character as the meta character, such  as  '%'
       and '"' and so on, Kanji character is not counted as 1 character in the
       wildcard search.

       And when you give the non-standard Kanji code for the OS to  the  shell
       with  the parameter macro such as %JJ, some Kanji is converted into the
       code including the meta character such as '$' and '\'  and  so  on,  to
       cause  unexpected behavior.  In that case, you can probably avoid it by
       quoting the string to be converted with %'.

AUTHOR

       Takashi SHIRAI <shirai@unixusers.net>
       The original "FD"  for  MS-DOS  was  created  and  released  by  A.Idei
       <SDI00544@niftyserve.or.jp>  for  the  first  time,  in  1989.   Fd was
       created for UNIX from scratch following that implementation, in 1995.

FILES

       /etc/fd2rc
                 The systemwide initial configuration file for fd
       ~/.fd2rc  The individual initial configuration file for fd
       ~/.fdshrc The individual initial configuration file for fdsh
       ~/.fd_history
                 The command history file by default
       ~/.fd_freq
                 The translation frequency file by default for the users Kana-
                 Kanji translation learning
       /bin/sh   The  user  shell  when  SHELL  the  environment  variable  is
                 undefined
       /bin/rm   The command to remove temporary files when abort
       fd-unicd.tbl
                 The UNICODE translation table, which is installed in the same
                 directory as the executable binary of fd
       fd-dict.tbl
                 The   Kana-Kanji   translation   dictionary  file,  which  is
                 installed in the same directory as the executable  binary  of
                 fd

       fd2rc     The  systemwide  initial  configuration file for fd on MS-DOS
                 version, which must be prepared in the same directory as  the
                 executable binary of fd
       $HOMEd2.rc
                 The  individual  initial  configuration file for fd on MS-DOS
                 version
       $HOMEdsh.rc
                 The individual initial configuration file for fdsh on  MS-DOS
                 version
       $HOMEd.hst
                 The command history file on MS-DOS version by default

LIMITATIONS

       Some  terminals  cannot  send  the  input  of certain function keys and
       special keys.  The sequence compatible with VT200 is  assigned  as  the
       default  sequence  which  is not registered in termcap(5), and when the
       terminal cannot support this, the key receipt or the screen control due
       to be brought by this is not available.

SEE ALSO

       sh(1),  echo(1),  test(1),  ls(1), rm(1), tar(1), compress(1), zcat(1),
       gzip(1), gunzip(1), lha(1),  login(1),  newgrp(1),  stty(1),  umask(2),
       termcap(5), terminfo(5), syslogd(8)

BUGS

       When  files  in  an  archive  file are packed with a pathname including
       "..", the archive browser cannot work normally.  The symbolic links  in
       an archive file cannot be unpacked individually.

       The user interface is cheap.

COPYRIGHT

       Copyright (C) 1995-2014 by Takashi SHIRAI

                                  May 6, 2014                            FD(1)



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