lprm - remove jobs from the line printer spooling queue
lprm [ -Pprinter ] [ - ] [ job # ... ] [ user ... ]
Lprm will remove a job, or jobs, from a printer's spool queue. Since the spooling direc-
tory 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 (other-
wise the default printer, or the value of the PRINTER variable in the environment is
/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
lpr(1), lpq(1), lpd(8)
``Permission denied" if the user tries to remove files other than his own.
Since there are race conditions possible in the update of the lock file, the currently
active job may be incorrectly identified.
4.2 Berkeley Distribution October 22, 1996 LPRM(1)