LPRM(1) — Unix Programmer’s Manual
NAME
lprm − remove jobs from the line printer spooling queue
SYNOPSIS
lprm [ options ] [ job# ] [ user(s) ]
DESCRIPTION
Lprm removes 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.
Without any arguments, lprm deletes the currently active job if it is owned by the user who invoked lprm.
A user may dequeue an individual job by specifying its job number. This number may be obtained from the lpq(1) program. For example:
% lpq −l
1st: ken[job #013ucbarpa]
(standard input)100 bytes
% lprm 13
Lprm announces the names of any files it removes and is silent if there are no jobs in the queue that match the request list.
Lprm kills off an active daemon, if necessary, before removing any spooling files. If a daemon is killed, lprm automatically starts a new one upon completion of file removals.
OPTIONS
− Causes lprm to remove all jobs that 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 hostname on the machine where the lpr command was invoked.
−Pprinter Specifies the queue associated with a specific printer (otherwise the default printer, or the value of the PRINTER variable in the environment is used).
job# Dequeues an individual job by specifying its job number.
user(s) Causes lprm to remove any jobs queued belonging to the specified user or users. Only the super-user can use this option of lprm.
FILES
/etc/printcapprinter characteristics file
/usr/spool/∗spooling directories
/usr/spool/∗/locklock file used to obtain the pid of the current
daemon and the job number of the currently active job
SEE ALSO
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.
5 BSD — October 29, 1987