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

NAME
     lpc -- line printer control program

SYNOPSIS
     lpc [command [argument ...]]

DESCRIPTION
     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 in-
     put.  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 com-
     mands.

     ? [command	...]
     help [command ...]
	     Print a short description of each command specified in the	argu-
	     ment 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.

     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 users	know
	     why.  lpq(1) will indicate	the printer is down and	print the sta-
	     tus message.

     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.

     exit
     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 supe-
	     ruser, 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	print-
	     ers.

     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	dis-
	     able printing.

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

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

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

DIAGNOSTICS
     ?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 user "root" to	exe-
	     cute this command.

SEE ALSO
     lpq(1), lpr(1), lprm(1), printcap(5), lpd(8)

HISTORY
     The lpc command appeared in 4.2BSD.

BSD			       October 29, 2009				   BSD

NAME | SYNOPSIS | DESCRIPTION | FILES | DIAGNOSTICS | SEE ALSO | HISTORY

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