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       xlbiff - mailbox message previewer for X


       xlbiff [ -option ... ]


       The xlbiff program lurks in the background, watching your mailbox file,
       waiting for new mail.  When mail arrives, it  invokes  the  MH  scan(1)
       command and pops up a window with the results.  Clicking the left mouse
       button anywhere in this window makes it go away.  The window will  also
       disappear if iconified or if the mailbox size drops to zero.


       Xlbiff accepts all of the standard X Toolkit command line options along
       with the additional options listed below:

       -help   This option indicates that  a  brief  summary  of  the  allowed
               options should be printed on standard output.

       -bottom This  option  tells  xlbiff  to  realize/unrealize() the output
               window instead of using XtPopup/down().  This has the effect of
               causing  the  window manager to reposition the window each time
               it pops up, and is useful  for  when  you  specify  negative  Y
               coordinates,  ie,  at the bottom of the screen.  Running xlbiff
               in this situation without -bottom would cause new lines to  run
               off the bottom edge of the screen.

       +bottom Opposite of -bottom.

       -file filename
               This  option  specifies  the  name  of the file which should be
               monitored.  By default,  it  watches  /usr/spool/mail/username,
               where username is your login name.

       -rows height
               This  option specifies the maximum height, in lines of text, of
               the xlbiff window.  The default is 20.

       -columns width
               This option specifies the maximum width, in characters, of  the
               xlbiff window.  The default is 80.

               If  this option is set, xlbiff will reset the screen saver when
               new mail comes in.  This is useful if  you're  doing  something
               near your workstation but not on it.

               Opposite of -resetSaver.

       -update seconds
               This  option specifies the frequency in seconds at which xlbiff
               should update its display.  The default is 15 seconds.

       -fade seconds
               Number of seconds to wait  before  popping  window  back  down.
               This  option  can  be  used  to  monitor  events of non-lasting
               importance, such as syslog or UUCP queues.  The  default  value
               of 0 disables the fade option.

       -led ledNum
               This  option specifies a keyboard LED to light up when there is
               mail waiting in the file.  The default is zero (do not light  a

               This  option  indicates  that the LED should be turned off when
               xlbiff is popped down.  Ordinarily the LED stays lit to  remind
               one  of  awaiting  mail.  This option has no effect if the -led
               option is disabled.

               Opposite of -ledPopdown.

       -refresh seconds
               This option specifies the number of seconds to wait before  re-
               posting  the mail window after you acknowledge it, and it still
               contains the same mail.  The default  is  0  (no  refresh).   A
               useful value for this is 1800 (30 minutes).

       -mailerCommand command
               Specifies the command to invoke when the the mailer() action is
               activated, eg, "xterm -e elm" or "inc".   By  default  this  is
               bound  to  the  second mouse button.  Invoking this action will
               pop down the main window.  When the command exits, it will  pop
               up  again.   Due  to  mailbox  consistency  considerations, the
               mailerCommand should not exit before it is  finished  with  the
               mailbox, i.e.  it should not be run in the background.

               There is no default mailerCommand.

       -scanCommand command
               Specifies  a  shell command to be executed to list the contents
               of mailbox file.  The specified string value  is  used  as  the
               argument  to  a  system(3)  call  and may therefore contain i/o
               redirection.  The command's stdout  is  used  to  generate  the
               window.  Internally, the command is generated as

                             sprintf(buf, scanCommand, file, columns)

               so  a  %s  and %d respectively in scanCommand will generate the
               values of file and columns.  The default scanCommand is

                         scan -file %s -width %d

       -checkCommand command
               Specifies a shell command to be executed to check for new  mail
               (or some other condition) rather than simply examining the size
               of the mail file.  The specified string value is  used  as  the
               argument  to  a  popen(3)  call,  and  the  output generated is
               important.  Like xbiff, an exit status of 0  indicates  that  a
               change in condition demands a new evaluation of scanCommand and
               subsequent popup, 1  indicates  no  change  in  status,  and  2
               indicates  that  the  condition has been cleared and the xlbiff
               window should pop  down.   By  default,  no  shell  command  is

               This option may be useful to monitor logins (by checking update
               times of /etc/utmp), when using POP or  other  custom  maildrop
               mechanisms, and so forth.

               Similarly   to   scanCommand,  the  checkCommand  is  generated
               internally as

                            sprintf(buf, checkCommand, file, previous)

               previous  is  the  numeric  value  output  by  the  last   time
               checkCommand  was  run, or zero the first time.  This is useful
               for allowing the checkCommand to maintain state in a  primitive
               fashion.  For instance, a checkCommand such as

                          compare_size %s %d

               would  "do  the right thing" if compare_size were a script such

                        NEWSIZE=`wc -c <$1`
                        echo $NEWSIZE
                        if [ $NEWSIZE -ne $2 ]; then
                            if [ $NEWSIZE -eq 0 ]; then
                                exit 2
                                exit 0
                        exit 1

               The author of xlbiff  uses  this  facility  to  keep  track  of
               several  maildrops  with one command.  See the Bcheck and Bscan
               scripts, included.

       -volume percentage
               This option specifies how loud the bell should be rung when new
               mail comes in.

       The  following  standard  X Toolkit command line arguments are commonly
       used with xlbiff:

       -display display
               This option specifies the X server to contact.

       -geometry +x+y
               This option  specifies  the  preferred  position  of  the  scan

       -bg color
               This  option  specifies  the color to use for the background of
               the window.

       -fg color
               This option specifies the color to use for  the  foreground  of
               the window.

       -xrm resourcestring
               This  option  specifies  a resource string to be used.  This is
               especially useful  for  setting  resources  that  do  not  have
               separate command line options.


       The  application  class name is XLbiff.  It understands all of the core
       resource names and classes as well as:

       bottom (class Bottom)
               Same as the -bottom option.

       file (class File)
               Same as the -file option.

       mailerCommand (class MailerCommand)
               Same as the -mailerCommand option.

       scanCommand (class ScanCommand)
               Same as the -scanCommand option.

       checkCommand (class CheckCommand)
               Same as the -checkCommand option.

       resetSaver (class ResetSaver)
               Same as the -resetSaver option.

       update (class Interval)
               Same as the -update option.

       fade (class Fade)
               Same as the -fade option.

       columns (class Columns)
               Same as the -columns option.

       rows (class Rows)
               Specifies the maximum height, in lines, of the  xlbiff  window.
               The default is 20.

       led (class Led)
               Same as the -led option.

       ledPopdown (class LedPopdown)
               Same as the -ledPopdown option.

       refresh (class Refresh)
               Same as the -refresh option.

       sound (class Sound)
               Specify  a  command  to be run in place of a bell when new mail
               arrives.  For example, on a Sun Sparc you might use:

                *sound: /usr/demo/SOUND/play -v %d /usr/demo/SOUND/sounds/

               The command  is  generated  internally  with  sprintf,  so  the
               characters  ``%d''  will  be replaced with the numeric value of
               the volume resource.

       volume (class Volume)
               Same as the -volume option.


       Xlbiff provides the following actions for use in event translations:

               This action causes the window to vanish.

       exit()  This action causes xlbiff to exit.

       The default translations are

               <Button1Press>:  popdown()
               <Button3Press>:  exit()


       DISPLAY is used to get the default host and display number.


               default mail file to check.


       X(1), scan(1)


       specifying dimensions in -geometry causes badness.

       The led option does not work on Suns before SunOS 4.1/X11R5.


       Ed Santiago,


       Xlbiff took shape around the xgoodbye sample program in the O'Reilly  X
       Toolkit  Intrinsics  Programming Manual.  A lot of code was stolen from
       xbiff,  including  this  man  page.   Thanks  also  to  Stephen  Gildea
       (  for  the  many, many contributions that made
       xlbiff grow from a midnight hack to a more mature product.

                                  2 June 1994                       XLBIFF(1x)

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