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+.\" Copyright (c) 1983, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by the University of
+.\"	California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"	@(#)6.t	8.1 (Berkeley) 6/8/93
+.\"
+.NH 1
+Line printer Administration
+.PP
+The
+.I lpc
+program provides local control over line printer activity.
+The major commands and their intended use will be described.
+The command format and remaining commands are described in
+.IR lpc (8).
+.LP
+\fBabort\fP and \fBstart\fP
+.IP
+.I Abort
+terminates an active spooling daemon on the local host immediately and
+then disables printing (preventing new daemons from being started by
+.IR lpr ).
+This is normally used to forcibly restart a hung line printer daemon
+(i.e., \fIlpq\fP reports that there is a daemon present but nothing is
+happening).  It does not remove any jobs from the queue
+(use the \fIlprm\fP command instead).
+.I Start
+enables printing and requests \fIlpd\fP to start printing jobs.
+.LP
+\fBenable\fP and \fBdisable\fP
+.IP
+\fIEnable\fP and \fIdisable\fP allow spooling in the local queue to be
+turned on/off.
+This will allow/prevent
+.I lpr
+from putting new jobs in the spool queue.  It is frequently convenient
+to turn spooling off while testing new line printer filters since the
+.I root
+user can still use
+.I lpr
+to put jobs in the queue but no one else can.
+The other main use is to prevent users from putting jobs in the queue
+when the printer is expected to be unavailable for a long time.
+.LP
+\fBrestart\fP
+.IP
+.I Restart
+allows ordinary users to restart printer daemons when
+.I lpq
+reports that there is no daemon present.
+.LP
+\fBstop\fP
+.IP
+.I Stop
+halts a spooling daemon after the current job completes;
+this also disables printing.  This is a clean way to shutdown a
+printer to do maintenance, etc.  Note that users can still enter jobs in a
+spool queue while a printer is
+.IR stopped .
+.LP
+\fBtopq\fP
+.IP
+.I Topq
+places jobs at the top of a printer queue.  This can be used
+to reorder high priority jobs since
+.I lpr
+only provides first-come-first-serve ordering of jobs.