4.4BSD/usr/share/man/cat1/lprm.0

LPRM(1)                      BSD Reference Manual                      LPRM(1)

NNAAMMEE
     llpprrmm - remove jobs from the line printer spooling queue

SSYYNNOOPPSSIISS
     llpprrmm [--PP_p_r_i_n_t_e_r] [--] [job # ...] [_u_s_e_r _._._.]

DDEESSCCRRIIPPTTIIOONN
     LLpprrmm will remove a job, or jobs, from a printer's spool queue.  Since the
     spooling directory is protected from users, using llpprrmm is normally the
     only method by which a user may remove a job.  The owner of a job is de-
     termined by the user's login name and host name on the machine where the
     lpr(1) command was invoked.

     Options and arguments:

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

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

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

     _j_o_b _#   A user may dequeue an individual job by specifying its job num-
             ber.  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, LLpprrmm will delete the currently
     active job if it is owned by the user who invoked llpprrmm.

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

     LLpprrmm 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.

EENNVVIIRROONNMMEENNTT
     If the following environment variable exists, it is utilized by llpprrmm.

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

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

SSEEEE AALLSSOO
     lpr(1),  lpq(1),  lpd(8)

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

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

HHIISSTTOORRYY
     The llpprrmm command appeared in 3.0BSD.

4.2 Berkeley Distribution        June 6, 1993                                2