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.\" $OpenBSD: lpc.8,v 1.9 2000/04/15 11:45:59 aaron Exp $
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.\" Copyright (c) 1983, 1991, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" @(#)lpc.8 8.5 (Berkeley) 4/28/95
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.Nd line printer control program
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is used by the system administrator to control the
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operation of the line printer system.
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For each line printer configured in
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.Bl -bullet -offset indent
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disable or enable a printer,
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disable or enable a printer's spooling queue,
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rearrange the order of jobs in a spooling queue,
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find the status of printers, and their associated
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spooling queues and printer daemons.
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Without any arguments,
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will prompt for commands from the standard input.
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If arguments are supplied,
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interprets the first argument as a command and the remaining
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arguments as parameters to the command.
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The standard input may be redirected causing
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to read commands from file.
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Commands may be abbreviated;
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the following is the list of recognized commands.
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.Bl -tag -width Ds -compact
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.It Ic \&? No [ Ar command Ar ... ]
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.It Ic help No [ Ar command Ar ... ]
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Print a short description of each command specified in the argument list,
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or, if no argument is given, a list of the recognized commands.
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.It Ic abort No {\ all\ |\ printer\ }
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Terminate an active spooling daemon on the local host immediately and
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then disable printing (preventing new daemons from being started by
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for the specified printers.
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.It Ic clean No {\ all\ |\ printer\ }
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Remove any temporary files, data files, and control files that cannot
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be printed (i.e., do not form a complete printer job)
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from the specified printer queue(s) on the local machine.
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.It Ic disable No {\ all\ |\ printer\ }
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Turn the specified printer queues off.
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This prevents new printer jobs from being entered into the queue by
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.It Xo Ic down No {\ all\ |\ printer\ } Ar message
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Turn the specified printer queue off, disable printing and put
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in the printer status file.
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The message doesn't need to be quoted, the
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remaining arguments are treated like
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This is normally used to take a printer down and let others know why
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will indicate the printer is down and print the status message.
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.It Ic enable No {\ all\ |\ printer\ }
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Enable spooling on the local queue for the listed printers.
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to put new jobs in the spool queue.
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.It Ic restart No {\ all\ |\ printer\ }
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Attempt to start a new printer daemon.
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This is useful when some abnormal condition causes the daemon to
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die unexpectedly, leaving jobs in the queue.
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will report that there is no daemon present when this condition occurs.
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If the user is the superuser,
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try to abort the current daemon first (i.e., kill and restart a stuck daemon).
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.It Ic start No {\ all\ |\ printer\ }
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Enable printing and start a spooling daemon for the listed printers.
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.It Ic status No {\ all\ |\ printer\ }
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Display the status of daemons and queues on the local machine.
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.It Ic stop No {\ all\ |\ printer\ }
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Stop a spooling daemon after the current job completes and disable
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.It Ic topq No printer\ [\ jobnum\ ...\ ]\ [\ user\ ...\ ]
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Place the jobs in the order listed at the top of the printer queue.
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.It Ic up No {\ all\ |\ printer\ }
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Enable everything and start a new printer daemon.
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Undoes the effects of
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.Bl -tag -width /var/spool/*/lockx -compact
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printer description file
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.It Pa /var/spool/*/lock
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lock file for queue control
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.It Sy "?Ambiguous command"
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Abbreviation matches more than one command.
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.It Sy "?Invalid command"
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.It Sy "?Privileged command"
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You must be a member of group
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to execute this command.
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lpc/lpc.8
