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LPC(8)                  FreeBSD System Manager's Manual                 LPC(8)

     lpc - line printer control program

     lpc [command [argument ...]]

     Lpc is used by the system administrator to control the operation of the
     line printer system.  For each line printer configured in /etc/printcap,
     lpc may be used to:

           +o   disable or enable a printer,

           +o   disable or enable a printer's spooling queue,

           +o   rearrange the order of jobs in a spooling queue,

           +o   find the status of printers, and their associated spooling
               queues and printer daemons.

     Without any arguments, lpc will prompt for commands from the standard
     input.  If arguments are supplied, lpc interprets the first argument as a
     command and the remaining arguments as parameters to the command.  The
     standard input may be redirected causing lpc to read commands from file.
     Commands may be abbreviated; the following is the list of recognized

     ? [command ...]
     help [command ...]
             Print a short description of each command specified in the
             argument list, or, if no argument is given, a list of the
             recognized commands.

     abort {all | printer}
             Terminate an active spooling daemon on the local host immediately
             and then disable printing (preventing new daemons from being
             started by lpr(1)) for the specified printers.

     clean {all | printer}
             Remove any temporary files, data files, and control files that
             cannot be printed (i.e., do not form a complete printer job) from
             the specified printer queue(s) on the local machine.  This
             command will also look for core files in spool directory for each
             printer queue, and list any that are found.  It will not remove
             any core files.  See also the tclean command.

     disable {all | printer}
             Turn the specified printer queues off.  This prevents new printer
             jobs from being entered into the queue by lpr(1).

     down {all | printer} message ...
             Turn the specified printer queue off, disable printing and put
             message in the printer status file.  The message doesn't need to
             be quoted, the remaining arguments are treated like echo(1).
             This is normally used to take a printer down and let others know
             why lpq(1) will indicate the printer is down and print the status

     enable {all | printer}
             Enable spooling on the local queue for the listed printers.  This
             will allow lpr(1) to put new jobs in the spool queue.

     quit    Exit from lpc.

     restart {all | printer}
             Attempt to start a new printer daemon.  This is useful when some
             abnormal condition causes the daemon to die unexpectedly, leaving
             jobs in the queue.  lpq(1) will report that there is no daemon
             present when this condition occurs.  If the user is the super-
             user, try to abort the current daemon first (i.e., kill and
             restart a stuck daemon).

     start {all | printer}
             Enable printing and start a spooling daemon for the listed

     status {all | printer}
             Display the status of daemons and queues on the local machine.

     stop {all | printer}
             Stop a spooling daemon after the current job completes and
             disable printing.

     tclean {all | printer}
             This will do a test-run of the clean command.  All the same
             checking is done, but the command will only print out messages
             saying what a similar clean command would do if the user typed it
             in.  It will not remove any files.  Note that the clean command
             is a privileged command, while the tclean command is not

     topq printer [jobnum ...] [user ...]
             Place the jobs in the order listed at the top of the printer

     up {all | printer}
             Enable everything and start a new printer daemon.  Undoes the
             effects of down.

     /etc/printcap       printer description file
     /var/spool/*        spool directories
     /var/spool/*/lock   lock file for queue control

     lpq(1), lpr(1), lprm(1), printcap(5), chkprintcap(8), lpd(8)

     ?Ambiguous command  abbreviation matches more than one command

     ?Invalid command  no match was found

     ?Privileged command  you must be a member of group "operator" or root to
     execute this command

     The lpc command appeared in 4.2BSD.

FreeBSD 11.0-PRERELEASE          June 20, 2001         FreeBSD 11.0-PRERELEASE


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