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 can dequeue an individual job by specifying its job number. This number can 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 can 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 might be incorrectly identified.
ERROR Messages: `Permission denied’ if the user tries to remove files other than their own.
Related linux commands:
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