lprm

Remove jobs from the line printer spooling queue

Syntax
      lprm [-Pprinter] [-] [job# ...] [user ...]

Options and arguments:

     -Pprinter
             Specify the queue associated with a specific printer (otherwise
             the default printer is used).

     -       If a single `-' is given, lprm will remove all jobs which a user
             owns.  If the super-user employs this flag, the spool queue will
             be emptied entirely.

     user    Causes lprm to attempt to remove any jobs queued belonging to
             that user (or users).  This form of invoking lprm is useful only
             to the super-user.

     job#   A user may dequeue an individual job by specifying its job number.
            This number may be obtained from the lpq(1) program, e.g.

                   % lpq -l

                   1st:ken                         [job #013ucbarpa]
                           (standard input)        100 bytes
                   % lprm 13

     If neither arguments or options are given, lprm will delete the currently
     active job if it is owned by the user who invoked lprm.

     lprm announces the names of any files it removes and is silent if there
     are no jobs in the queue which match the request list.

     lprm will kill off an active daemon, if necessary, before removing any
     spooling files.  If a daemon is killed, a new one is automatically
     restarted upon completion of file removals.

Environment
     If the following environment variable exists, it is utilized by lprm.

     PRINTER  If the environment variable PRINTER exists, and a printer has
              not been specified with the -P option, the default printer is
              assumed from PRINTER.

Files
     /etc/printcap       Printer characteristics file.
     /var/spool/*        Spooling directories.
     /var/spool/*/lock   Lock file used to obtain the pid of the current daemon
                         and the job number of the currently active job.

Lprm will remove a job, or jobs, from a printer's spool queue.

Since the spooling directory is protected from users, using Lprm is normally the only method by which a user may remove a job.

The owner of a job is determined by the user's login name and host name on the machine where the lpr command was invoked.

Bug: since there are race conditions possible in the update of the lock file, the currently active job may be incorrectly identified.

ERROR Messages: `Permission denied' if the user tries to remove files other than their own.

"Because I could not stop for Death - He kindly stopped for me
The carriage held but just ourselves - And Immortality..." ~ Emily Dickinson

Related:

lpc - Line printer control program
lpr - Off line print
lprint - Print a file
lprintd / lpd(8) - Abort a print job
lprintq / lpq(1) - List the print queue
pr(1) - Convert text files for printing
printcap(5) - Printer Capability database
symlink - Make a new name for a file
Equivalent Windows command: NET PRINT - Manage print jobs


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