lprm(1)

NAME
     lprm - remove jobs from the BSD line printer spooling queue

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

DESCRIPTION
     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.

     Lprm without any arguments will delete the currently active job if it is
     owned by the user who invoked lprm.

     If the - flag is specified, lprm will remove all jobs which a user owns.
     If the super-user employs this flag, the spool queue will be emptied
     entirely. The owner is determined by the user's login name and host name
     on the machine where the lpr command was invoked.

     Specifying a user's name, or list of user names, will cause 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.

     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

     Lprm will announce 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.

     The -P option may be usd to specify the queue associated with a specific
     printer (otherwise the default printer, or the value of the PRINTER
     variable in the environment is used).

FILES
     /etc/printcap       printer characteristics file
     /usr/spool/*        spooling directories
     /usr/spool/*/lock   lock file used to obtain the pid of the current
                         daemon and the job number of the currently active job
SEE ALSO
     lpr(1), lpq(1), lpd(1M)

DIAGNOSTICS
     ``Permission denied" if the user tries to remove files other than his
     own.

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