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       zshoptions - zsh options


       Options  are  primarily  referred  to  by  name.   These names are case
       insensitive and underscores are ignored.  For example,  `allexport'  is
       equivalent to `A__lleXP_ort'.

       The  sense of an option name may be inverted by preceding it with `no',
       so `setopt No_Beep' is equivalent to `unsetopt beep'.   This  inversion
       can  only  be  done  once,  so  `nonobeep' is not a synonym for `beep'.
       Similarly, `tify' is not a synonym for  `nonotify'  (the  inversion  of

       Some  options also have one or more single letter names.  There are two
       sets of single letter options: one used by default, and another used to
       emulate  sh/ksh  (used  when the SH_OPTION_LETTERS option is set).  The
       single letter options can be used on the shell command  line,  or  with
       the  set, setopt and unsetopt builtins, as normal Unix options preceded
       by `-'.

       The sense of the single letter options may be  inverted  by  using  `+'
       instead  of  `-'.   Some  of the single letter option names refer to an
       option being off, in which case the inversion of that  name  refers  to
       the  option  being  on.  For example, `+n' is the short name of `exec',
       and `-n' is the short name of its inversion, `noexec'.

       In strings of single letter options supplied to the shell  at  startup,
       trailing  whitespace  will  be ignored; for example the string `-f    '
       will be treated just as `-f', but the string `-f i' is an error.   This
       is  because many systems which implement the `#!' mechanism for calling
       scripts do not strip trailing whitespace.


       In the following list, options set by default  in  all  emulations  are
       marked  <D>;  those  set  by  default  only  in  csh,  ksh,  sh, or zsh
       emulations are marked <C>, <K>, <S>, <Z> as appropriate.  When  listing
       options  (by  `setopt', `unsetopt', `set -o' or `set +o'), those turned
       on by default appear in the list prefixed  with  `no'.   Hence  (unless
       KSH_OPTION_PRINT is set), `setopt' shows all options whose settings are
       changed from the default.

   Changing Directories
       AUTO_CD (-J)
              If a command is issued  that  can't  be  executed  as  a  normal
              command, and the command is the name of a directory, perform the
              cd command to that directory.

       AUTO_PUSHD (-N)
              Make cd push the old directory onto the directory stack.

       CDABLE_VARS (-T)
              If the argument to a cd command  (or  an  implied  cd  with  the
              AUTO_CD  option set) is not a directory, and does not begin with
              a slash, try to expand the expression as if it were preceded  by
              a `~' (see the section `Filename Expansion').

              When  changing  to  a  directory  containing a path segment `..'
              which would otherwise  be  treated  as  canceling  the  previous
              segment  in  the path (in other words, `foo/..' would be removed
              from the path, or if `..' is the first part  of  the  path,  the
              last  part  of  the current working directory would be removed),
              instead resolve the path to the physical directory.  This option
              is overridden by CHASE_LINKS.

              For  example,  suppose  /foo/bar  is  a  link  to  the directory
              /alt/rod.  Without this option set, `cd /foo/bar/..' changes  to
              /foo;  with it set, it changes to /alt.  The same applies if the
              current directory is /foo/bar and `cd ..' is  used.   Note  that
              all other symbolic links in the path will also be resolved.

       CHASE_LINKS (-w)
              Resolve  symbolic  links  to  their  true  values  when changing
              directory.  This also has the effect of CHASE_DOTS, i.e. a  `..'
              path  segment  will  be  treated  as  referring  to the physical
              parent, even if the preceding path segment is a symbolic link.

              Modifies the behaviour of cd, chdir and pushd commands  to  make
              them more compatible with the POSIX standard. The behaviour with
              the option unset is described in the documentation  for  the  cd
              builtin in zshbuiltins(1).  If the option is set, the shell does
              not test for directories beneath the local directory (`.') until
              after all directories in cdpath have been tested.

              Also, if the option is set, the conditions under which the shell
              prints the new directory after changing to it are modified.   It
              is no longer restricted to interactive shells (although printing
              of  the  directory  stack  with  pushd  is  still   limited   to
              interactive  shells);  and  any  use  of  a component of CDPATH,
              including a  `.'  but  excluding  an  empty  component  that  is
              otherwise treated as `.', causes the directory to be printed.

              Don't  push  multiple  copies  of  the  same  directory onto the
              directory stack.

              Exchanges the meanings of `+' and `-' when used with a number to
              specify a directory in the stack.

       PUSHD_SILENT (-E)
              Do not print the directory stack after pushd or popd.

       PUSHD_TO_HOME (-D)
              Have pushd with no arguments act like `pushd $HOME'.

              If  unset,  key functions that list completions try to return to
              the last prompt if  given  a  numeric  argument.  If  set  these
              functions  try  to return to the last prompt if given no numeric

              If a completion is performed with the cursor within a word,  and
              a full completion is inserted, the cursor is moved to the end of
              the word.  That is, the cursor is moved to the end of  the  word
              if  either  a  single  match  is  inserted or menu completion is

       AUTO_LIST (-9) <D>
              Automatically list choices on an ambiguous completion.

       AUTO_MENU <D>
              Automatically use menu completion after the  second  consecutive
              request  for  completion,  for  example  by pressing the tab key
              repeatedly. This option is overridden by MENU_COMPLETE.

              Any parameter that is set to the absolute name  of  a  directory
              immediately becomes a name for that directory, that will be used
              by the `%~' and related prompt sequences, and will be  available
              when  completion  is  performed  on  a  word  starting with `~'.
              (Otherwise, the parameter must be  used  in  the  form  `~param'

              If  a  parameter  name  was  completed and a following character
              (normally  a  space)  automatically  inserted,  and   the   next
              character typed is one of those that have to come directly after
              the  name  (like  `}',  `:',  etc.),  the  automatically   added
              character   is  deleted,  so  that  the  character  typed  comes
              immediately after the parameter name.   Completion  in  a  brace
              expansion  is  affected similarly: the added character is a `,',
              which will be removed if `}' is typed next.

              If a parameter is completed whose  content  is  the  name  of  a
              directory, then add a trailing slash instead of a space.

              When  the  last character resulting from a completion is a slash
              and the next character typed is a word delimiter, a slash, or  a
              character  that  ends  a  command  (such  as  a  semicolon or an
              ampersand), remove the slash.

              On an ambiguous completion, automatically list choices when  the
              completion  function  is called twice in succession.  This takes
              precedence over AUTO_LIST.  The  setting  of  LIST_AMBIGUOUS  is
              respected.   If  AUTO_MENU  is set, the menu behaviour will then
              start with the third press.  Note that this will not  work  with
              MENU_COMPLETE, since repeated completion calls immediately cycle
              through the list in that case.

              Prevents aliases on  the  command  line  from  being  internally
              substituted  before  completion  is attempted.  The effect is to
              make the alias a distinct command for completion purposes.

              If unset, the cursor is set to the end of the word if completion
              is started. Otherwise it stays there and completion is done from
              both ends.

              When the current word has a glob pattern, do not insert all  the
              words  resulting  from the expansion but generate matches as for
              completion  and  cycle  through  them  like  MENU_COMPLETE.  The
              matches  are  generated  as if a `*' was added to the end of the
              word, or inserted at the cursor when  COMPLETE_IN_WORD  is  set.
              This  actually  uses pattern matching, not globbing, so it works
              not only for files but for any completion, such as options, user
              names, etc.

              Note  that  when  the  pattern matcher is used, matching control
              (for example, case-insensitive or anchored matching)  cannot  be
              used.   This  limitation  only  applies  when  the  current word
              contains a pattern; simply turning on the  GLOB_COMPLETE  option
              does not have this effect.

       HASH_LIST_ALL <D>
              Whenever   a   command  completion  or  spelling  correction  is
              attempted, make sure the entire command path  is  hashed  first.
              This  makes the first completion slower but avoids false reports
              of spelling errors.

              This option works when AUTO_LIST or BASH_AUTO_LIST is also  set.
              If there is an unambiguous prefix to insert on the command line,
              that is done without a completion list being displayed; in other
              words,  auto-listing  behaviour  only  takes  place when nothing
              would be inserted.  In the case of  BASH_AUTO_LIST,  this  means
              that the list will be delayed to the third call of the function.

       LIST_BEEP <D>
              Beep  on  an ambiguous completion.  More accurately, this forces
              the completion widgets  to  return  status  1  on  an  ambiguous
              completion, which causes the shell to beep if the option BEEP is
              also set; this may be modified if completion is  called  from  a
              user-defined widget.

              Try  to  make the completion list smaller (occupying less lines)
              by printing the matches in columns with different widths.

              Lay out the matches in  completion  lists  sorted  horizontally,
              that  is, the second match is to the right of the first one, not
              under it as usual.

       LIST_TYPES (-X) <D>
              When listing files that are possible completions, show the  type
              of each file with a trailing identifying mark.

              On  an ambiguous completion, instead of listing possibilities or
              beeping,  insert  the  first  match  immediately.    Then   when
              completion is requested again, remove the first match and insert
              the second match, etc.  When there are no more matches, go  back
              to  the  first  one again.  reverse-menu-complete may be used to
              loop through the  list  in  the  other  direction.  This  option
              overrides AUTO_MENU.

       REC_EXACT (-S)
              In   completion,  recognize  exact  matches  even  if  they  are

   Expansion and Globbing
       BAD_PATTERN (+2) <C> <Z>
              If a pattern for filename generation is badly formed,  print  an
              error  message.   (If  this option is unset, the pattern will be
              left unchanged.)

              In a glob pattern, treat a trailing  set  of  parentheses  as  a
              qualifier  list,  if it contains no `|', `(' or (if special) `~'
              characters.  See the section `Filename Generation'.

              Expand expressions in braces which would not  otherwise  undergo
              brace   expansion  to  a  lexically  ordered  list  of  all  the
              characters.  See the section `Brace Expansion'.

       CASE_GLOB <D>
              Make globbing (filename generation)  sensitive  to  case.   Note
              that  other  uses  of patterns are always sensitive to case.  If
              the option is unset, the presence  of  any  character  which  is
              special  to  filename  generation  will  cause  case-insensitive
              matching.  For example, cvs(/) can match the directory CVS owing
              to  the  presence  of  the  globbing  flag  (unless  the  option
              BARE_GLOB_QUAL is unset).

       CASE_MATCH <D>
              Make regular expressions using the zsh/regex  module  (including
              matches with =~) sensitive to case.

       CSH_NULL_GLOB <C>
              If  a pattern for filename generation has no matches, delete the
              pattern from the argument list; do not report  an  error  unless
              all  the  patterns  in  a  command  have  no matches.  Overrides

       EQUALS <Z>
              Perform  =  filename  expansion.   (See  the  section  `Filename

              Treat  the  `#',  `~' and `^' characters as part of patterns for
              filename generation,  etc.   (An  initial  unquoted  `~'  always
              produces named directory expansion.)

              Constants  in  arithmetic evaluation will be treated as floating
              point even without the use of a decimal point.  Integers in  any
              base will be converted.

       GLOB (+F, ksh: +f) <D>
              Perform   filename  generation  (globbing).   (See  the  section
              `Filename Generation'.)

       GLOB_ASSIGN <C>
              If  this  option  is  set,  filename  generation  (globbing)  is
              performed on the right hand side of scalar parameter assignments
              of the form `name=pattern (e.g. `foo=*').   If  the  result  has
              more than one word the parameter will become an array with those
              words as  arguments.  This  option  is  provided  for  backwards
              compatibility  only:  globbing  is always performed on the right
              hand side of array assignments of the form `name=(value)'  (e.g.
              `foo=(*)')  and  this form is recommended for clarity; with this
              option set, it is not possible to  predict  whether  the  result
              will be an array or a scalar.

       GLOB_DOTS (-4)
              Do  not  require  a  leading  `.'  in  a  filename to be matched

       GLOB_SUBST <C> <K> <S>
              Treat any characters resulting from parameter expansion as being
              eligible  for  file  expansion  and filename generation, and any
              characters resulting from command substitution as being eligible
              for  filename generation.  Braces (and commas in between) do not
              become eligible for expansion.

              Substitutions  using  the  :s  and  :&  history  modifiers   are
              performed  with  pattern  matching  instead  of string matching.
              This occurs wherever history modifiers are valid, including glob
              qualifiers   and  parameters.   See  the  section  Modifiers  in

       IGNORE_BRACES (-I) <S>
              Do not perform brace expansion.   For  historical  reasons  this
              also includes the effect of the IGNORE_CLOSE_BRACES option.

              When  neither this option nor IGNORE_BRACES is set, a sole close
              brace character `}' is syntactically significant at any point on
              a  command  line.   This  has  the  effect  that no semicolon or
              newline is necessary before the brace terminating a function  or
              current  shell  construct.  When either option is set, a closing
              brace is syntactically significant  only  in  command  position.
              Unlike   IGNORE_BRACES,  this  option  does  not  disable  brace

              For example, with both options unset a function may  be  defined
              in the following fashion:

                     args() { echo $# }

              while  if either option is set, this does not work and something
              equivalent to the following is required:

                     args() { echo $#; }

       KSH_GLOB <K>
              In  pattern  matching,  the  interpretation  of  parentheses  is
              affected  by  a  preceding  `@',  `*', `+', `?' or `!'.  See the
              section `Filename Generation'.

              All  unquoted  arguments  of  the   form   `anything=expression'
              appearing  after  the command name have filename expansion (that
              is, where expression has a leading  `~'  or  `=')  performed  on
              expression  as  if it were a parameter assignment.  The argument
              is not otherwise treated specially; it is passed to the  command
              as  a  single  argument,  and  not  used  as an actual parameter
              assignment.   For  example,  in   echo   foo=~/bar:~/rod,   both
              occurrences  of  ~  would  be  replaced.  Note that this happens
              anyway with typeset and similar statements.

              This option respects the setting of the KSH_TYPESET option.   In
              other  words,  if  both options are in effect, arguments looking
              like assignments will not undergo word splitting.

       MARK_DIRS (-8, ksh: -X)
              Append a trailing `/' to  all  directory  names  resulting  from
              filename generation (globbing).

       MULTIBYTE <C> <K> <Z>
              Respect  multibyte  characters when found in strings.  When this
              option is set, strings are examined using the system library  to
              determine  how  many  bytes  form  a character, depending on the
              current locale.  This affects the way characters are counted  in
              pattern matching, parameter values and various delimiters.

              The  option  is  on  by  default  if the shell was compiled with
              MULTIBYTE_SUPPORT except in sh emulation; otherwise it is off by
              default  and  has no effect if turned on.  The mode is off in sh
              emulation for compatibility but for interactive use may need  to
              be turned on if the terminal interprets multibyte characters.

              If the option is off a single byte is always treated as a single
              character.   This  setting  is  designed  purely  for  examining
              strings  known to contain raw bytes or other values that may not
              be characters in the current locale.  It  is  not  necessary  to
              unset  the  option  merely  because  the  character  set for the
              current locale does not contain multibyte characters.

              The option does not affect the  shell's  editor,   which  always
              uses  the  locale  to  determine  multibyte characters.  This is
              because the character set displayed by the terminal emulator  is
              independent of shell settings.

       NOMATCH (+3) <C> <Z>
              If  a  pattern  for filename generation has no matches, print an
              error, instead of leaving it unchanged  in  the  argument  list.
              This also applies to file expansion of an initial `~' or `='.

       NULL_GLOB (-G)
              If  a pattern for filename generation has no matches, delete the
              pattern from the argument list instead of  reporting  an  error.
              Overrides NOMATCH.

              If  numeric  filenames  are  matched  by  a  filename generation
              pattern,   sort   the   filenames   numerically   rather    than

              Array  expansions of the form `foo${xx}bar', where the parameter
              xx is set to (a b c),  are  substituted  with  `fooabar  foobbar
              foocbar'  instead  of  the  default `fooa b cbar'.  Note that an
              empty array will therefore cause all arguments to be removed.

              If set, regular expression matching with the  =~  operator  will
              use  Perl-Compatible  Regular Expressions from the PCRE library,
              if available.  If not set,  regular  expressions  will  use  the
              extended regexp syntax provided by the system libraries.

       SH_GLOB <K> <S>
              Disables  the  special  meaning  of  `(',  `|',  `)' and '<' for
              globbing the result of parameter and command substitutions,  and
              in  some  other  places  where  the  shell accepts patterns.  If
              SH_GLOB is set  but  KSH_GLOB  is  not,  the  shell  allows  the
              interpretation  of  subshell expressions enclosed in parentheses
              in some cases  where  there  is  no  space  before  the  opening
              parenthesis,  e.g.  !(true)  is  interpreted  as if there were a
              space after the !.  This option is set  by  default  if  zsh  is
              invoked as sh or ksh.

       UNSET (+u, ksh: +u) <K> <S> <Z>
              Treat  unset parameters as if they were empty when substituting.
              Otherwise they are treated as an error.

              Print a warning message when a global parameter is created in  a
              function   by  an  assignment.   This  often  indicates  that  a
              parameter has not been declared local when it should have  been.
              Parameters  explicitly  declared  global  from within a function
              using typeset -g do not cause a warning.  Note that there is  no
              warning  when  a  local  parameter  is  assigned  to in a nested
              function, which may also indicate an error.

              If this is set, zsh sessions will append their history  list  to
              the  history  file,  rather  than  replace  it.  Thus,  multiple
              parallel zsh sessions will all have the new entries  from  their
              history  lists added to the history file, in the order that they
              exit.  The file will still be periodically re-written to trim it
              when the number of lines grows 20% beyond the value specified by
              $SAVEHIST (see also the HIST_SAVE_BY_COPY option).

       BANG_HIST (+K) <C> <Z>
              Perform  textual  history  expansion,  csh-style,  treating  the
              character `!' specially.

              Save  each  command's  beginning timestamp (in seconds since the
              epoch) and the duration (in seconds) to the history  file.   The
              format of this prefixed data is:

              `: <beginning time>:<elapsed seconds>;<command>'.

              Add  `|'  to  output  redirections  in the history.  This allows
              history references to clobber files even when CLOBBER is unset.

       HIST_BEEP <D>
              Beep when an attempt is made to access  a  history  entry  which
              isn't there.

              If  the  internal history needs to be trimmed to add the current
              command line, setting this option will cause the oldest  history
              event  that  has  a  duplicate to be lost before losing a unique
              event from the list.  You should be sure to  set  the  value  of
              HISTSIZE  to  a larger number than SAVEHIST in order to give you
              some room for the duplicated events, otherwise this option  will
              behave  just like HIST_IGNORE_ALL_DUPS once the history fills up
              with unique events.

              When writing out the history file, by default  zsh  uses  ad-hoc
              file  locking  to  avoid  known  problems  with  locking on some
              operating systems.  With this option locking is done by means of
              the  system's  fcntl  call,  where this method is available.  On
              recent operating systems this may provide better performance, in
              particular  avoiding history corruption when files are stored on

              When searching for history entries in the line  editor,  do  not
              display  duplicates  of  a  line  previously  found, even if the
              duplicates are not contiguous.

              If a new command line being added to the history list duplicates
              an  older  one, the older command is removed from the list (even
              if it is not the previous event).

       HIST_IGNORE_DUPS (-h)
              Do not enter command lines into the history  list  if  they  are
              duplicates of the previous event.

              Remove  command  lines  from  the  history  list  when the first
              character on the line is a space, or when one  of  the  expanded
              aliases  contains  a  leading  space.   Only normal aliases (not
              global or suffix aliases) have this behaviour.   Note  that  the
              command  lingers  in the internal history until the next command
              is entered before it vanishes, allowing you to briefly reuse  or
              edit the line.  If you want to make it vanish right away without
              entering another command, type a space and press return.

              By default, shell history that is read in from  files  is  split
              into  words  on all white space.  This means that arguments with
              quoted  whitespace  are  not   correctly   handled,   with   the
              consequence  that references to words in history lines that have
              been read from a file may be inaccurate.  When  this  option  is
              set,  words  read  in  from  a  history file are divided up in a
              similar fashion to normal shell command line handling.  Although
              this  produces  more  accurately delimited words, if the size of
              the history file is large this can be slow.  Trial and error  is
              necessary to decide.

              Remove  function  definitions  from the history list.  Note that
              the function lingers in the  internal  history  until  the  next
              command  is  entered before it vanishes, allowing you to briefly
              reuse or edit the definition.

              Remove the history (fc -l) command from the  history  list  when
              invoked.   Note that the command lingers in the internal history
              until the next command is entered before it  vanishes,  allowing
              you to briefly reuse or edit the line.

              Remove  superfluous blanks from each command line being added to
              the history list.

              When the history file is re-written, we  normally  write  out  a
              copy of the file named $ and then rename it over the
              old one.  However, if this option is unset, we instead  truncate
              the old history file and write out the new version in-place.  If
              one of the history-appending options  is  enabled,  this  option
              only  has  an  effect when the enlarged history file needs to be
              re-written to trim it down to size.  Disable this  only  if  you
              have  special  needs,  as  doing  so  makes  it possible to lose
              history entries if zsh gets interrupted during the save.

              When writing out a copy of the history file, zsh  preserves  the
              old file's permissions and group information, but will refuse to
              write out a new file if  it  would  change  the  history  file's

              When writing out the history file, older commands that duplicate
              newer ones are omitted.

              Whenever the user enters a line with  history  expansion,  don't
              execute  the  line  directly; instead, perform history expansion
              and reload the line into the editing buffer.

              This options works like APPEND_HISTORY except that  new  history
              lines  are added to the $HISTFILE incrementally (as soon as they
              are entered), rather than waiting until the  shell  exits.   The
              file  will  still be periodically re-written to trim it when the
              number  of  lines  grows  20%  beyond  the  value  specified  by
              $SAVEHIST (see also the HIST_SAVE_BY_COPY option).

              This  option  is a variant of INC_APPEND_HISTORY in which, where
              possible, the history entry is written out to the file after the
              command  is  finished,  so that the time taken by the command is
              recorded correctly  in  the  history  file  in  EXTENDED_HISTORY
              format.  This means that the history entry will not be available
              immediately from other instances of the shell that are using the
              same history file.

              This   option   is   only   useful   if  INC_APPEND_HISTORY  and
              SHARE_HISTORY are turned  off.   The  three  options  should  be
              considered mutually exclusive.


              This option both imports new commands from the history file, and
              also causes your typed commands to be appended  to  the  history
              file  (the  latter  is like specifying INC_APPEND_HISTORY, which
              should be turned off if this option is in effect).  The  history
              lines  are  also  output  with  timestamps  ala EXTENDED_HISTORY
              (which makes it easier to  find  the  spot  where  we  left  off
              reading the file after it gets re-written).

              By  default,  history movement commands visit the imported lines
              as well as the local lines, but you can toggle this on  and  off
              with  the set-local-history zle binding.  It is also possible to
              create a zle widget that will make some commands ignore imported
              commands, and some include them.

              If  you  find  that you want more control over when commands get
              imported,   you   may   wish   to   turn   SHARE_HISTORY    off,
              INC_APPEND_HISTORY  or  INC_APPEND_HISTORY_TIME  (see above) on,
              and then manually import commands whenever you need  them  using
              `fc -RI'.

       ALL_EXPORT (-a, ksh: -a)
              All parameters subsequently defined are automatically exported.

       GLOBAL_EXPORT (<Z>)
              If  this  option  is  set,  passing  the -x flag to the builtins
              declare, float, integer, readonly and typeset  (but  not  local)
              will  also  set  the  -g flag;  hence parameters exported to the
              environment will not be made local to  the  enclosing  function,
              unless they were already or the flag +g is given explicitly.  If
              the option is unset, exported parameters will be made  local  in
              just the same way as any other parameter.

              This  option is set by default for backward compatibility; it is
              not recommended that its behaviour be relied  upon.   Note  that
              the  builtin  export  always  sets both the -x and -g flags, and
              hence its effect extends  beyond  the  scope  of  the  enclosing
              function;  this  is  the  most  portable  way  to  achieve  this

       GLOBAL_RCS (-d) <D>
              If this  option  is  unset,  the  startup  files  /etc/zprofile,
              /etc/zshrc,  /etc/zlogin  and  /etc/zlogout will not be run.  It
              can be disabled and re-enabled at  any  time,  including  inside
              local startup files (.zshrc, etc.).

       RCS (+f) <D>
              After  /etc/zshenv  is  sourced  on startup, source the .zshenv,
              /etc/zprofile,  .zprofile,  /etc/zshrc,   .zshrc,   /etc/zlogin,
              .zlogin,  and  .zlogout  files,  as  described  in  the  section
              `Files'.  If this option is unset, the /etc/zshenv file is still
              sourced, but any of the others will not be; it can be set at any
              time to prevent the remaining startup files after the  currently
              executing one from being sourced.

       ALIASES <D>
              Expand aliases.

       CLOBBER (+C, ksh: +C) <D>
              Allows  `>'  redirection to truncate existing files, and `>>' to
              create files.  Otherwise `>!' or `>|' must be used to truncate a
              file, and `>>!' or `>>|' to create a file.

       CORRECT (-0)
              Try  to  correct  the spelling of commands.  Note that, when the
              HASH_LIST_ALL option is not set or when some directories in  the
              path  are  not readable, this may falsely report spelling errors
              the first time some commands are used.

              The shell variable CORRECT_IGNORE may be set  to  a  pattern  to
              match words that will never be offered as corrections.

       CORRECT_ALL (-O)
              Try to correct the spelling of all arguments in a line.

       DVORAK Use  the Dvorak keyboard instead of the standard qwerty keyboard
              as a basis for examining spelling mistakes for the  CORRECT  and
              CORRECT_ALL options and the spell-word editor command.

              If  this  option  is  unset,  output flow control via start/stop
              characters (usually  assigned  to  ^S/^Q)  is  disabled  in  the
              shell's editor.

       IGNORE_EOF (-7)
              Do  not  exit on end-of-file.  Require the use of exit or logout
              instead.  However, ten consecutive EOFs will cause the shell  to
              exit anyway, to avoid the shell hanging if its tty goes away.

              Also,  if  this  option  is set and the Zsh Line Editor is used,
              widgets implemented by shell  functions  can  be  bound  to  EOF
              (normally   Control-D)   without  printing  the  normal  warning
              message.  This works only for normal widgets, not for completion

              Allow comments even in interactive shells.

       HASH_CMDS <D>
              Note the location of each command the first time it is executed.
              Subsequent invocations of the same command will  use  the  saved
              location,  avoiding  a path search.  If this option is unset, no
              path hashing is done at all.   However,  when  CORRECT  is  set,
              commands  whose  names do not appear in the functions or aliases
              hash tables are hashed in  order  to  avoid  reporting  them  as
              spelling errors.

       HASH_DIRS <D>
              Whenever a command name is hashed, hash the directory containing
              it, as well as all directories that occur earlier in  the  path.
              Has no effect if neither HASH_CMDS nor CORRECT is set.

              When  hashing  commands because of HASH_COMMANDS, check that the
              file to be hashed is actually an  executable.   This  option  is
              unset  by  default  as  if  the  path contains a large number of
              commands, or consists of many remote files, the additional tests
              can take a long time.  Trial and error is needed to show if this
              option is beneficial.

       MAIL_WARNING (-U)
              Print a warning message if a mail file has been  accessed  since
              the shell last checked.

       PATH_DIRS (-Q)
              Perform  a  path  search  even  on command names with slashes in
              them.  Thus if `/usr/local/bin' is in the user's path, and he or
              she  types  `X11/xinit',  the command `/usr/local/bin/X11/xinit'
              will be executed  (assuming  it  exists).   Commands  explicitly
              beginning  with  `/',  `./' or `../' are not subject to the path
              search.  This also applies to the `.' builtin.

              Note that subdirectories of the  current  directory  are  always
              searched  for  executables  specified  in this form.  This takes
              place before any search indicated by this option, and regardless
              of  whether  `.'  or the current directory appear in the command
              search path.

       PATH_SCRIPT <K> <S>
              If this option  is  not  set,  a  script  passed  as  the  first
              non-option  argument  to  the shell must contain the name of the
              file to open.  If this option is set, and the  script  does  not
              specify  a directory path, the script is looked for first in the
              current directory, then in the command path.   See  the  section
              INVOCATION in zsh(1).

              Print  eight  bit characters literally in completion lists, etc.
              This option is not necessary if your  system  correctly  returns
              the printability of eight bit characters (see ctype(3)).

       PRINT_EXIT_VALUE (-1)
              Print  the  exit  value  of  programs with non-zero exit status.
              This is only  available  at  the  command  line  in  interactive

              Allow  the  character  sequence  `'''  to signify a single quote
              within singly quoted strings.   Note  this  does  not  apply  in
              quoted  strings  using  the  format  $'...', where a backslashed
              single quote can be used.

       RM_STAR_SILENT (-H) <K> <S>
              Do not query the user before executing `rm *' or `rm path/*'.

              If querying the user before executing `rm  *'  or  `rm  path/*',
              first  wait  ten seconds and ignore anything typed in that time.
              This avoids the problem of reflexively answering  `yes'  to  the
              query  when  one  didn't really mean it.  The wait and query can
              always be avoided by expanding the `*' in ZLE (with tab).

       SHORT_LOOPS <C> <Z>
              Allow the short forms of for, repeat, select, if,  and  function

              If  a line ends with a backquote, and there are an odd number of
              backquotes on the line, ignore the trailing backquote.  This  is
              useful  on some keyboards where the return key is too small, and
              the  backquote  key  lies  annoyingly  close  to  it.    As   an
              alternative  the  variable  KEYBOARD_HACK  lets  you  choose the
              character to be removed.

   Job Control
              With this option set, stopped jobs that are removed from the job
              table  with  the disown builtin command are automatically sent a
              CONT signal to make them running.

       AUTO_RESUME (-W)
              Treat  single  word  simple  commands  without  redirection   as
              candidates for resumption of an existing job.

       BG_NICE (-6) <C> <Z>
              Run all background jobs at a lower priority.  This option is set
              by default.

       CHECK_JOBS <Z>
              Report the  status  of  background  and  suspended  jobs  before
              exiting  a  shell with job control; a second attempt to exit the
              shell  will  succeed.   NO_CHECK_JOBS  is  best  used  only   in
              combination   with   NO_HUP,  else  such  jobs  will  be  killed

              The check is omitted if  the  commands  run  from  the  previous
              command  line included a `jobs' command, since it is assumed the
              user is aware that there are background or  suspended  jobs.   A
              `jobs' command run from one of the hook functions defined in the
              section SPECIAL FUNCTIONS in zshmisc(1) is not counted for  this

       HUP <Z>
              Send the HUP signal to running jobs when the shell exits.

       LONG_LIST_JOBS (-R)
              List jobs in the long format by default.

       MONITOR (-m, ksh: -m)
              Allow job control.  Set by default in interactive shells.

       NOTIFY (-5, ksh: -b) <Z>
              Report  the  status  of background jobs immediately, rather than
              waiting until just before printing a prompt.

       POSIX_JOBS <K> <S>
              This option makes job control  more  compliant  with  the  POSIX

              When the option is not set, the MONITOR option is unset on entry
              to subshells, so that job control is no longer active.  When the
              option  is set, the MONITOR option and job control remain active
              in the subshell, but note that the subshell  has  no  access  to
              jobs in the parent shell.

              When  the  option  is  not  set,  jobs  put in the background or
              foreground with bg or fg are displayed with the same information
              that  would  be  reported by jobs.  When the option is set, only
              the text is  printed.   The  output  from  jobs  itself  is  not
              affected by the option.

              When  the  option  is  not  set, job information from the parent
              shell is saved for output within a subshell (for example, within
              a  pipeline).   When  the  option  is set, the output of jobs is
              empty until a job is started within the subshell.

              When the option is set, it becomes  possible  to  use  the  wait
              builtin  to  wait for the last job started in the background (as
              given by $!) even if that job has already  exited.   This  works
              even  if  the  option is turned on temporarily around the use of
              the wait builtin.

       PROMPT_BANG <K>
              If set, `!' is  treated  specially  in  prompt  expansion.   See
              EXPANSION OF PROMPT SEQUENCES in zshmisc(1).

       PROMPT_CR (+V) <D>
              Print  a  carriage  return  just before printing a prompt in the
              line editor.  This is on by default  as  multi-line  editing  is
              only  possible  if  the editor knows where the start of the line

       PROMPT_SP <D>
              Attempt to preserve a partial line (i.e. a line that did not end
              with  a  newline)  that  would  otherwise  be  covered up by the
              command prompt due to  the  PROMPT_CR  option.   This  works  by
              outputting some cursor-control characters, including a series of
              spaces, that should make the terminal wrap to the next line when
              a  partial line is present (note that this is only successful if
              your terminal has automatic margins, which is typical).

              When a partial line is preserved, by default  you  will  see  an
              inverse+bold  character  at  the end of the partial line:  a "%"
              for a normal user  or  a  "#"  for  root.   If  set,  the  shell
              parameter  PROMPT_EOL_MARK  can be used to customize how the end
              of partial lines are shown.

              NOTE: if the PROMPT_CR option is not set, enabling  this  option
              will have no effect.  This option is on by default.

              If  set,  `%'  is  treated  specially  in prompt expansion.  See
              EXPANSION OF PROMPT SEQUENCES in zshmisc(1).

       PROMPT_SUBST <K> <S>
              If set, parameter expansion, command substitution and arithmetic
              expansion   are  performed  in  prompts.   Substitutions  within
              prompts do not affect the command status.

              Remove any right prompt from display when  accepting  a  command
              line.   This  may  be useful with terminals with other cut/paste

   Scripts and Functions
              Output hexadecimal numbers in the standard C format, for example
              `0xFF' instead of the usual `16#FF'.  If the option OCTAL_ZEROES
              is also set (it is  not  by  default),  octal  numbers  will  be
              treated  similarly  and hence appear as `077' instead of `8#77'.
              This option has no effect on the choice of the output base,  nor
              on  the  output of bases other than hexadecimal and octal.  Note
              that these formats will be understood on input  irrespective  of
              the setting of C_BASES.

              This  alters  the  precedence of arithmetic operators to be more
              like C and other programming languages; the  section  ARITHMETIC
              EVALUATION in zshmisc(1) has an explicit list.

              Run  the  DEBUG  trap  before  each command; otherwise it is run
              after each command.  Setting this option mimics the behaviour of
              ksh 93; with the option unset the behaviour is that of ksh 88.

       ERR_EXIT (-e, ksh: -e)
              If  a command has a non-zero exit status, execute the ZERR trap,
              if set, and exit.  This is disabled while running initialization

              The behaviour is also disabled inside DEBUG traps.  In this case
              the option is handled specially: it is unset  on  entry  to  the
              trap.   If  the  option  DEBUG_BEFORE_CMD  is  set,  as it is by
              default, and the option ERR_EXIT is found to have  been  set  on
              exit,  then  the  command  for  which  the  DEBUG  trap is being
              executed is skipped.  The option  is  restored  after  the  trap

              Exiting   due   to   ERR_EXIT   has  certain  interactions  with
              asynchronous jobs noted in the section JOBS in in zshmisc(1).

              If a command has a non-zero exit status, return immediately from
              the  enclosing  function.   The  logic  is identical to that for
              ERR_EXIT, except that an implicit return statement  is  executed
              instead  of an exit.  This will trigger an exit at the outermost
              level of a non-interactive script.

       EVAL_LINENO <Z>
              If set, line numbers of expressions evaluated using the  builtin
              eval  are tracked separately of the enclosing environment.  This
              applies both to the parameter LINENO and the line number  output
              by  the  prompt  escape  %i.   If  the option is set, the prompt
              escape %N will output the string `(eval)' instead of the  script
              or function name as an indication.   (The two prompt escapes are
              typically used in the parameter PS4 to be output when the option
              XTRACE is set.)  If EVAL_LINENO is unset, the line number of the
              surrounding  script  or  function   is   retained   during   the

       EXEC (+n, ksh: +n) <D>
              Do execute commands.  Without this option, commands are read and
              checked for syntax errors, but not executed.  This option cannot
              be  turned  off  in  an  interactive  shell, except when `-n' is
              supplied to the shell at startup.

              When executing a shell function or sourcing  a  script,  set  $0
              temporarily to the name of the function/script.

              If  this  option  is  set  at  the  point of return from a shell
              function, most options (including this one) which were in  force
              upon  entry  to  the function are restored; options that are not
              restored are PRIVILEGED and RESTRICTED.   Otherwise,  only  this
              option and the XTRACE and PRINT_EXIT_VALUE options are restored.
              Hence if this is explicitly unset by a shell function the  other
              options in force at the point of return will remain so.  A shell
              function can also guarantee itself a known  shell  configuration
              with  a  formulation  like  `emulate  -L  zsh'; the -L activates

              If this option is set at  the  point  of  return  from  a  shell
              function, the state of pattern disables, as set with the builtin
              command `disable -p', is  restored  to  what  it  was  when  the
              function  was  entered.  The behaviour of this option is similar
              to the effect of LOCAL_OPTIONS on options; hence `emulate -L sh'
              (or  indeed  any  other  emulation with the -L option) activates

       LOCAL_TRAPS <K>
              If this option is set  when  a  signal  trap  is  set  inside  a
              function,  then  the previous status of the trap for that signal
              will be restored when the function exits.  Note that this option
              must  be set prior to altering the trap behaviour in a function;
              unlike LOCAL_OPTIONS, the value on exit  from  the  function  is
              irrelevant.   However,  it  does  not  need to be set before any
              global trap for that to be correctly  restored  by  a  function.
              For example,

                     unsetopt localtraps
                     trap - INT
                     fn() { setopt localtraps; trap '' INT; sleep 3; }

              will restore normal handling of SIGINT after the function exits.

              Allow definitions of multiple functions at once in the form `fn1
              fn2...()'; if the option is not set, this causes a parse  error.
              Definition  of  multiple  functions with the function keyword is
              always allowed.  Multiple function  definitions  are  not  often
              used and can cause obscure errors.

       MULTIOS <Z>
              Perform  implicit  tees  or  cats when multiple redirections are
              attempted (see the section `Redirection').

              Interpret any integer constant beginning with a 0 as octal,  per
              IEEE  Std 1003.2-1992 (ISO 9945-2:1993).  This is not enabled by
              default as it causes problems with parsing of, for example, date
              and time strings with leading zeroes.

              Sequences  of  digits indicating a numeric base such as the `08'
              component  in  `08#77'  are  always  interpreted   as   decimal,
              regardless of leading zeroes.

              By  default,  when  a pipeline exits the exit status recorded by
              the shell and returned by the shell variable $? reflects that of
              the rightmost element of a pipeline.  If this option is set, the
              exit status instead reflects the status of the rightmost element
              of  the  pipeline  that  was  non-zero,  or zero if all elements
              exited with zero status.

              If set, zsh will print an informational message  announcing  the
              name of each file it loads.  The format of the output is similar
              to that for the XTRACE option, with the  message  <sourcetrace>.
              A  file  may be loaded by the shell itself when it starts up and
              shuts down  (Startup/Shutdown  Files)  or  by  the  use  of  the
              `source' and `dot' builtin commands.

              If  this  is  unset,  executing  any  of the `typeset' family of
              commands with no options and a list of parameters that  have  no
              values  to  be assigned but already exist will display the value
              of the parameter.  If the option is set, they will only be shown
              when  parameters  are selected with the `-m' option.  The option
              `-p' is available whether or not the option is set.

       VERBOSE (-v, ksh: -v)
              Print shell input lines as they are read.

       XTRACE (-x, ksh: -x)
              Print commands and their arguments as they  are  executed.   The
              output  is proceded by the value of $PS4, formatted as described
              in the section EXPANSION OF PROMPT SEQUENCES in zshmisc(1).

   Shell Emulation
              When set, matches performed with the =~ operator  will  set  the
              BASH_REMATCH  array  variable,  instead of the default MATCH and
              match variables.  The first element of  the  BASH_REMATCH  array
              will  contain  the  entire  matched text and subsequent elements
              will contain extracted substrings.  This option makes more sense
              when  KSH_ARRAYS is also set, so that the entire matched portion
              is stored at index 0 and the first  substring  is  at  index  1.
              Without  this  option,  the  MATCH  variable contains the entire
              matched text and the match array variable contains substrings.

       BSD_ECHO <S>
              Make the echo builtin compatible with the BSD  echo(1)  command.
              This  disables  backslashed  escape  sequences  in  echo strings
              unless the -e option is specified.

              If a fatal error is  encountered  (see  the  section  ERRORS  in
              zshmisc(1)), and the code is running in a script, the shell will
              resume execution at the next statement in the script at the  top
              level,  in other words outside all functions or shell constructs
              such as loops and conditions.   This  mimics  the  behaviour  of
              interactive  shells,  where the shell returns to the line editor
              to read a new command; it was the normal behaviour  in  versions
              of zsh before 5.0.1.

              A history reference without an event specifier will always refer
              to the previous command.  Without this option,  such  a  history
              reference  refers  to  the  same  event  as the previous history
              reference, defaulting to the previous command.

              Allow loop bodies to take the form `list; end'  instead  of  `do
              list; done'.

              Changes  the  rules  for single- and double-quoted text to match
              that of csh.  These require that embedded newlines  be  preceded
              by  a backslash; unescaped newlines will cause an error message.
              In double-quoted strings, it is made impossible to  escape  `$',
              ``'  or  `"' (and `\' itself no longer needs escaping).  Command
              substitutions are only expanded once, and cannot be nested.

       CSH_NULLCMD <C>
              Do not use the values of NULLCMD and  READNULLCMD  when  running
              redirections  with no command.  This make such redirections fail
              (see the section `Redirection').

       KSH_ARRAYS <K> <S>
              Emulate ksh array handling as  closely  as  possible.   If  this
              option  is  set, array elements are numbered from zero, an array
              parameter without subscript refers to the first element  instead
              of  the  whole  array,  and  braces  are  required  to delimit a
              subscript (`${path[2]}' rather than just `$path[2]').

       KSH_AUTOLOAD <K> <S>
              Emulate ksh  function  autoloading.   This  means  that  when  a
              function   is  autoloaded,  the  corresponding  file  is  merely
              executed, and must define the function itself.  (By default, the
              function  is  defined to the contents of the file.  However, the
              most common ksh-style case -  of  the  file  containing  only  a
              simple  definition  of  the  function - is always handled in the
              ksh-compatible manner.)

              Alters the way options settings are printed: instead of separate
              lists  of  set  and unset options, all options are shown, marked
              `on' if they are in the non-default state, `off' otherwise.

       KSH_TYPESET <K>
              Alters the way arguments to  the  typeset  family  of  commands,
              including  declare,  export, float, integer, local and readonly,
              are processed.  Without this option,  zsh  will  perform  normal
              word   splitting   after  command  and  parameter  expansion  in
              arguments of an assignment; with it,  word  splitting  does  not
              take place in those cases.

              Treat  use  of  a  subscript  of  value  zero in array or string
              expressions as a  reference  to  the  first  element,  i.e.  the
              element that usually has the subscript 1.  Ignored if KSH_ARRAYS
              is also set.

              If neither this option nor KSH_ARRAYS is  set,  accesses  to  an
              element  of  an  array  or  string with subscript zero return an
              empty element or string, while attempts to set element  zero  of
              an  array  or string are treated as an error.  However, attempts
              to set an otherwise valid subscript  range  that  includes  zero
              will succeed.  For example, if KSH_ZERO_SUBSCRIPT is not set,


              is an error, while


              is not and will replace the first element of the array.

              This  option  is  for  compatibility  with older versions of the
              shell and is not recommended in new code.

       POSIX_ALIASES <K> <S>
              When this option is set, reserved words are not  candidates  for
              alias expansion:  it is still possible to declare any of them as
              an alias, but the alias will never be expanded.  Reserved  words
              are described in the section RESERVED WORDS in zshmisc(1).

              Alias expansion takes place while text is being read; hence when
              this option is set it does not take effect until the end of  any
              function  or other piece of shell code parsed as one unit.  Note
              this may cause differences  from  other  shells  even  when  the
              option  is  in effect.  For example, when running a command with
              `zsh -c', or even `zsh -o posixaliases -c', the  entire  command
              argument  is  parsed  as one unit, so aliases defined within the
              argument are not available even in later lines.   If  in  doubt,
              avoid use of aliases in non-interactive code.

              When  this  option  is  set  the  command builtin can be used to
              execute shell builtin commands.  Parameter assignments specified
              before  shell  functions and special builtins are kept after the
              command completes unless the special builtin  is  prefixed  with
              the   command  builtin.   Special  builtins  are  .,  :,  break,
              continue, declare, eval, exit, export, integer, local, readonly,
              return, set, shift, source, times, trap and unset.

              In  addition, various error conditions associated with the above
              builtins or exec cause a non-interactive shell to  exit  and  an
              interactive shell to return to its top-level processing.

              When  this option is set, only the ASCII characters a to z, A to
              Z, 0 to 9 and _ may be  used  in  identifiers  (names  of  shell
              parameters and modules).

              When  the  option  is  unset  and multibyte character support is
              enabled (i.e. it is compiled in  and  the  option  MULTIBYTE  is
              set), then additionally any alphanumeric characters in the local
              character set may be used in identifiers.  Note that scripts and
              functions  written  with this feature are not portable, and also
              that both options must be set before the script or  function  is
              parsed;  setting  them during execution is not sufficient as the
              syntax variable=value has  already  been  parsed  as  a  command
              rather than an assignment.

              If  multibyte  character  support is not compiled into the shell
              this option is ignored; all octets with the top bit set  may  be
              used   in   identifiers.    This  is  non-standard  but  is  the
              traditional zsh behaviour.

       POSIX_STRINGS <K> <S>
              This option affects processing of quoted strings.  Currently  it
              only  affects the behaviour of null characters, i.e. character 0
              in the portable character set corresponding to US ASCII.

              When this option is not set,  null  characters  embedded  within
              strings  of  the form $'...' are treated as ordinary characters.
              The entire string is maintained within the shell and  output  to
              files  where  necessary,  although  owing to restrictions of the
              library interface the string is truncated at the null  character
              in  file  names,  environment  variables,  or  in  arguments  to
              external programs.

              When this option is set, the $'...' expression is  truncated  at
              the  null  character.   Note  that  remaining  parts of the same
              string beyond the termination of the quotes are not trunctated.

              For example, the command line argument a$'bc'd is treated with
              the  option off as the characters a, b, null, c, d, and with the
              option on as the characters a, b, d.

       POSIX_TRAPS <K> <S>
              When the is option is set, the usual zsh behaviour of  executing
              traps  for  EXIT on exit from shell functions is suppressed.  In
              that case, manipulating EXIT traps always alters the global trap
              for exiting the shell; the LOCAL_TRAPS option is ignored for the
              EXIT trap.

              Perform filename expansion (e.g., ~ expansion) before  parameter
              expansion,  command substitution, arithmetic expansion and brace
              expansion.  If this option is unset, it is performed after brace
              expansion, so things like `~$USERNAME' and `~{pfalstad,rc}' will

       SH_NULLCMD <K> <S>
              Do not use the values of  NULLCMD  and  READNULLCMD  when  doing
              redirections, use `:' instead (see the section `Redirection').

              If this option is set the shell tries to interpret single letter
              options (which are used with set  and  setopt)  like  ksh  does.
              This also affects the value of the - special parameter.

       SH_WORD_SPLIT (-y) <K> <S>
              Causes  field  splitting  to  be performed on unquoted parameter
              expansions.  Note that this option has nothing to do  with  word
              splitting.  (See the section `Parameter Expansion'.)

              While  waiting  for  a  program  to exit, handle signals and run
              traps immediately.  Otherwise the trap  is  run  after  a  child
              process  has  exited.   Note  this  does not affect the point at
              which traps are run for any case other than when  the  shell  is
              waiting for a child process.

   Shell State
       INTERACTIVE (-i, ksh: -i)
              This   is  an  interactive  shell.   This  option  is  set  upon
              initialisation if the standard input is a tty and  commands  are
              being   read  from  standard  input.   (See  the  discussion  of
              SHIN_STDIN.)  This heuristic may be overridden by  specifying  a
              state  for  this  option on the command line.  The value of this
              option can only be changed via flags supplied at  invocation  of
              the shell.  It cannot be changed once zsh is running.

       LOGIN (-l, ksh: -l)
              This  is  a  login shell.  If this option is not explicitly set,
              the shell becomes a login shell if the first  character  of  the
              argv[0] passed to the shell is a `-'.

       PRIVILEGED (-p, ksh: -p)
              Turn  on  privileged  mode.  This  is  enabled  automatically on
              startup if the effective user (group) ID is  not  equal  to  the
              real  user  (group)  ID.   Turning  this  option  off causes the
              effective user and group IDs to be set  to  the  real  user  and
              group IDs. This option disables sourcing user startup files.  If
              zsh  is  invoked  as  `sh'  or  `ksh'  with  this  option   set,
              /etc/suid_profile  is sourced (after /etc/profile on interactive
              shells). Sourcing ~/.profile is disabled and the contents of the
              ENV variable is ignored. This option cannot be changed using the
              -m option of setopt and  unsetopt,  and  changing  it  inside  a
              function   always   changes   it   globally  regardless  of  the
              LOCAL_OPTIONS option.

       RESTRICTED (-r)
              Enables restricted mode.  This option cannot  be  changed  using
              unsetopt,  and  setting  it  inside a function always changes it
              globally  regardless  of  the  LOCAL_OPTIONS  option.   See  the
              section `Restricted Shell'.

       SHIN_STDIN (-s, ksh: -s)
              Commands  are  being read from the standard input.  Commands are
              read from standard input if no command is specified with -c  and
              no  file  of  commands  is  specified.   If  SHIN_STDIN  is  set
              explicitly  on  the  command  line,  any  argument  that   would
              otherwise  have  been  taken  as  a  file to run will instead be
              treated as a normal positional parameter.  Note that setting  or
              unsetting  this  option on the command line does not necessarily
              affect the state the option will have while the shell is running
              -  that  is  purely  an indicator of whether on not commands are
              actually being read from standard  input.   The  value  of  this
              option  can  only be changed via flags supplied at invocation of
              the shell.  It cannot be changed once zsh is running.

       SINGLE_COMMAND (-t, ksh: -t)
              If the shell is reading from standard input, it  exits  after  a
              single  command  has  been  executed.  This also makes the shell
              non-interactive, unless the INTERACTIVE option is explicitly set
              on  the  command  line.   The  value  of this option can only be
              changed via flags supplied  at  invocation  of  the  shell.   It
              cannot be changed once zsh is running.

       BEEP (+B) <D>
              Beep on error in ZLE.

              Assume   that   the   terminal   displays  combining  characters
              correctly.  Specifically, if a base  alphanumeric  character  is
              followed  by  one  or  more  zero-width  punctuation characters,
              assume that the  zero-width  characters  will  be  displayed  as
              modifications  to the base character within the same width.  Not
              all  terminals  handle  this.   If  this  option  is  not   set,
              zero-width  characters  are  displayed  separately  with special

              If this option is set, the pattern  test  [[:WORD:]]  matches  a
              zero-width  punctuation character on the assumption that it will
              be used as part of a word in combination with a word  character.
              Otherwise  the  base  shell does not handle combining characters

       EMACS  If ZLE is loaded, turning on  this  option  has  the  equivalent
              effect  of  `bindkey  -e'.  In addition, the VI option is unset.
              Turning it off  has  no  effect.   The  option  setting  is  not
              guaranteed  to  reflect  the  current  keymap.   This  option is
              provided  for  compatibility;   bindkey   is   the   recommended

              Start up the line editor in overstrike mode.

       SINGLE_LINE_ZLE (-M) <K>
              Use single-line command line editing instead of multi-line.

              Note  that  although  this  is on by default in ksh emulation it
              only provides superficial compatibility with the ksh line editor
              and reduces the effectiveness of the zsh line editor.  As it has
              no effect on shell syntax, many users may wish to  disable  this
              option when using ksh emulation interactively.

       VI     If  ZLE  is  loaded,  turning  on this option has the equivalent
              effect of `bindkey -v'.  In addition, the EMACS option is unset.
              Turning  it  off  has  no  effect.   The  option  setting is not
              guaranteed to  reflect  the  current  keymap.   This  option  is
              provided   for   compatibility;   bindkey   is  the  recommended

       ZLE (-Z)
              Use the zsh line editor.  Set by default in  interactive  shells
              connected to a terminal.


       Some  options have alternative names.  These aliases are never used for
       output, but can be used just like normal option names  when  specifying
       options to the shell.

              NO_IGNORE_BRACES (ksh and bash compatibility)

              GLOB_DOTS (bash compatibility)

              HASH_CMDS (bash compatibility)

              APPEND_HISTORY (bash compatibility)

              BANG_HIST (bash compatibility)

       LOG    NO_HIST_NO_FUNCTIONS (ksh compatibility)

              MAIL_WARNING (bash compatibility)

              SINGLE_COMMAND (bash compatibility)

              CHASE_LINKS (ksh and bash compatibility)

              PROMPT_SUBST (bash compatibility)

       STDIN  SHIN_STDIN (ksh compatibility)

              HASH_CMDS (ksh compatibility)


   Default set
       -0     CORRECT
       -1     PRINT_EXIT_VALUE
       -2     NO_BAD_PATTERN
       -3     NO_NOMATCH
       -4     GLOB_DOTS
       -5     NOTIFY
       -6     BG_NICE
       -7     IGNORE_EOF
       -8     MARK_DIRS
       -9     AUTO_LIST
       -B     NO_BEEP
       -C     NO_CLOBBER
       -D     PUSHD_TO_HOME
       -E     PUSHD_SILENT
       -F     NO_GLOB
       -G     NULL_GLOB
       -H     RM_STAR_SILENT
       -I     IGNORE_BRACES
       -J     AUTO_CD
       -K     NO_BANG_HIST
       -M     SINGLE_LINE_ZLE
       -N     AUTO_PUSHD
       -O     CORRECT_ALL
       -P     RC_EXPAND_PARAM
       -Q     PATH_DIRS
       -R     LONG_LIST_JOBS
       -S     REC_EXACT
       -T     CDABLE_VARS
       -U     MAIL_WARNING
       -V     NO_PROMPT_CR
       -W     AUTO_RESUME
       -X     LIST_TYPES
       -Y     MENU_COMPLETE
       -Z     ZLE
       -a     ALL_EXPORT
       -e     ERR_EXIT
       -f     NO_RCS
       -g     HIST_IGNORE_SPACE
       -h     HIST_IGNORE_DUPS
       -i     INTERACTIVE
       -l     LOGIN
       -m     MONITOR
       -n     NO_EXEC
       -p     PRIVILEGED
       -r     RESTRICTED
       -s     SHIN_STDIN
       -t     SINGLE_COMMAND
       -u     NO_UNSET
       -v     VERBOSE
       -w     CHASE_LINKS
       -x     XTRACE
       -y     SH_WORD_SPLIT

   sh/ksh emulation set
       -C     NO_CLOBBER
       -T     TRAPS_ASYNC
       -X     MARK_DIRS
       -a     ALL_EXPORT
       -b     NOTIFY
       -e     ERR_EXIT
       -f     NO_GLOB
       -i     INTERACTIVE
       -l     LOGIN
       -m     MONITOR
       -n     NO_EXEC
       -p     PRIVILEGED
       -r     RESTRICTED
       -s     SHIN_STDIN
       -t     SINGLE_COMMAND
       -u     NO_UNSET
       -v     VERBOSE
       -x     XTRACE

   Also note
       -A     Used by set for setting arrays
       -b     Used on the command line to specify end of option processing
       -c     Used on the command line to specify a single command
       -m     Used by setopt for pattern-matching option setting
       -o     Used in all places to allow use of long option names
       -s     Used by set to sort positional parameters

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