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fbbd9655e5
Renumber cluase 4 to 3, per what everybody else did when BSD granted them permission to remove clause 3. My insistance on keeping the same numbering for legal reasons is too pedantic, so give up on that point. Submitted by: Jan Schaumann <jschauma@stevens.edu> Pull Request: https://github.com/freebsd/freebsd/pull/96
310 lines
8.8 KiB
Groff
310 lines
8.8 KiB
Groff
.\" Copyright (c) 1983, 1991, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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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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.\" are met:
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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. 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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.\"
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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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.\" SUCH DAMAGE.
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.\"
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.\" @(#)lpc.8 8.5 (Berkeley) 4/28/95
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.\" $FreeBSD$
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.\"
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.Dd July 16, 2002
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.Dt LPC 8
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.Os
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.Sh NAME
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.Nm lpc
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.Nd line printer control program
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.Sh SYNOPSIS
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.Nm
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.Op Ar command Op Ar argument ...
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.Sh DESCRIPTION
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The
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.Nm
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utility 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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.Pa /etc/printcap ,
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.Nm
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may be used to:
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.Bl -bullet -offset indent
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.It
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disable or enable a printer,
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.It
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disable or enable a printer's spooling queue,
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.It
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rearrange the order of jobs in a spooling queue,
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.It
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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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.It
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change the status message for printer queues (the status message
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may be seen by users as part of the output of the
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.Xr lpq 1
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utility).
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.El
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.Pp
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Without any arguments,
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.Nm
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will prompt for commands from the standard input.
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If arguments are supplied,
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.Nm
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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
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may be redirected causing
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.Nm
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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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.Pp
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.Bl -tag -width indent -compact
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.It Ic \&? Op Ar command ...
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.It Ic help Op Ar command ...
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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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.Pp
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.It Ic abort Brq Cm all | Ar 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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.Xr lpr 1 )
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for the specified printers.
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.Pp
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.It Ic bottomq Ar printer Op Ar jobspec ...
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Take the specified jobs in the order specified and move them to the
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bottom of the printer queue.
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Each
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.Ar jobspec
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can match multiple print jobs.
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The full description of a
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.Ar jobspec
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is given below.
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.Pp
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.It Ic clean Brq Cm all | Ar 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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This command will also look for
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.Pa core
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files in spool directory
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for each printer queue, and list any that are found.
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It will not remove any
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.Pa core
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files.
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See also the
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.Ic tclean
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command.
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.Pp
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.It Ic disable Brq Cm all | Ar printer
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Turn the specified printer queues off.
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This prevents new
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printer jobs from being entered into the queue by
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.Xr lpr 1 .
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.Pp
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.It Ic down Bro Cm all | Ar printer ... Brc Cm -msg Ar message ...
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.It Ic down Bro Cm all | Ar printer Brc Ar message ...
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Turn the specified printer queue off, disable printing and put
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.Ar message
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in the printer status file.
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When specifying more than one printer queue, the
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.Ic -msg
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argument is required to separate the list of printers from the text
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that will be the new status message.
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The message does not need to be quoted, the
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remaining arguments are treated like
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.Xr echo 1 .
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This is normally used to take a printer down, and let other users
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find out why it is down (the
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.Xr lpq 1
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utility will indicate that the printer is down and will print the
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status message).
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.Pp
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.It Ic enable Brq Cm all | Ar printer
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Enable spooling on the local queue for the listed printers.
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This will allow
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.Xr lpr 1
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to put new jobs in the spool queue.
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.Pp
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.It Ic exit
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.It Ic quit
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Exit from
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.Nm .
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.Pp
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.It Ic restart Brq Cm all | Ar 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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.Xr lpq 1
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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 super-user,
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try to abort the current daemon first (i.e., kill and restart a stuck daemon).
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.Pp
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.It Ic setstatus Bro Cm all | Ar printer Brc Cm -msg Ar message ...
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Set the status message for the specified printers.
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The
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.Ic -msg
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argument is required to separate the list of printers from the text
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that will be the new status message.
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This is normally used to change the status message when the printer
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queue is no longer active after printing has been disabled, and you
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want to change what users will see in the output of the
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.Xr lpq 1
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utility.
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.Pp
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.It Ic start Brq Cm all | Ar printer
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Enable printing and start a spooling daemon for the listed printers.
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.Pp
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.It Ic status Brq Cm all | Ar printer
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Display the status of daemons and queues on the local machine.
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.Pp
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.It Ic stop Brq Cm all | Ar printer
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Stop a spooling daemon after the current job completes and disable
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printing.
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.Pp
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.It Ic tclean Brq Cm all | Ar printer
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This will do a test-run of the
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.Ic clean
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command.
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All the same checking is done, but the command will only print out
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messages saying what a similar
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.Ic clean
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command would do if the user typed it in.
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It will not remove any files.
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Note that the
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.Ic clean
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command is a privileged command, while the
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.Ic tclean
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command is not restricted.
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.Pp
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.It Ic topq Ar printer Op Ar jobspec ...
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Take the specified jobs in the order specified and move them to the
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top of the printer queue.
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Each
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.Ar jobspec
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can match multiple print jobs.
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The full description of a
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.Ar jobspec
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is given below.
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.Pp
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.It Ic up Brq Cm all | Ar 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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.Ic down .
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.El
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.Pp
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Commands such as
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.Ic topq
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and
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.Ic bottomq
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can take one or more
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.Ar jobspec
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to specify which jobs the command should operate on.
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A
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.Ar jobspec
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can be:
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.Bl -bullet
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.It
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a single job number, which will match all jobs in the printer's queue
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which have the same job number.
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Eg:
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.Ar 17 ,
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.It
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a range of job numbers, which will match all jobs with a number between
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the starting and ending job numbers, inclusive.
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Eg:
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.Ar 21-32 ,
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.It
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a specific userid, which will match all jobs which were sent by that
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user.
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Eg:
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.Ar jones ,
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.It
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a host name, when prefixed by an `@', which will match all jobs in
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the queue which were sent from the given host.
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Eg:
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.Ar @freebsd.org ,
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.It
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a job range and a userid, separated by a `:', which will match all jobs
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which both match the job range and were sent by the specified user.
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Eg:
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.Ar jones:17
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or
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.Ar 21-32:jones ,
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.It
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a job range and/or a userid, followed by a host name, which will match
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all jobs which match all the specified criteria.
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Eg:
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.Ar jones@freebsd.org
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or
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.Ar 21-32@freebsd.org
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or
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.Ar jones:17@freebsd.org .
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.El
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.Pp
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The values for userid and host name can also include pattern-matching
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characters, similar to the pattern matching done for filenames in
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most command shells.
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Note that if you enter a
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.Ic topq
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or
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.Ic bottomq
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command as parameters on the initial
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.Nm
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command, then the shell will expand any pattern-matching characters
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that it can (based on what files in finds in the current directory)
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before
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.Nm
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processes the command.
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In that case, any parameters which include pattern-matching characters
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should be enclosed in quotes, so that the shell will not try to
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expand them.
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.Sh FILES
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.Bl -tag -width /var/spool/*/lockx -compact
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.It Pa /etc/printcap
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printer description file
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.It Pa /var/spool/*
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spool directories
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.It Pa /var/spool/*/lock
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lock file for queue control
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.El
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.Sh DIAGNOSTICS
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.Bl -diag
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.It "?Ambiguous command"
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abbreviation matches more than one command
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.It "?Invalid command"
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no match was found
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.It "?Privileged command"
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you must be a member of group "operator" or root to execute this command
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.El
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.Sh SEE ALSO
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.Xr lpq 1 ,
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.Xr lpr 1 ,
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.Xr lprm 1 ,
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.Xr printcap 5 ,
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.Xr chkprintcap 8 ,
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.Xr lpd 8
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.Sh HISTORY
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The
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.Nm
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utility appeared in
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.Bx 4.2 .
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