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+.\" Copyright (c) 1983, 1991, 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.
+.\"
+.\"     @(#)renice.8   8.1 (Berkeley) 6/9/93
+.\"
+.TH RENICE "1" "September 2011" "util-linux" "User Commands"
+.SH NAME
+renice \- alter priority of running processes
+.SH SYNOPSIS
+.B renice
+-n priority [options] <pid> [...]
+.SH DESCRIPTION
+.B Renice
+alters the scheduling priority of one or more running processes.  The
+following
+.I who
+parameters are interpreted as process ID's, process group ID's, or user
+names.
+.BR Renice 'ing
+a process group causes all processes in the process group to have their
+scheduling priority altered.
+.BR Renice 'ing
+a user causes all processes owned by the user to have their scheduling
+priority altered.  By default, the processes to be affected are specified by
+their process ID's.
+.PP
+.SH OPTIONS
+.TP
+\fB\-n\fR, \fB\-\-priority\fR \fIpriority\fR
+The scheduling
+.I priority
+of the process, process group, or user.  Use of
+.BR \-n " or " \-\-priority
+can only exist as the first argument of
+.B renice
+command.
+.TP
+\fB\-g\fR, \fB\-\-pgrp\fR \fIpgid\fR
+Force
+.I who
+parameters to be interpreted as \fIprocess group ID\fR's.
+.TP
+\fB\-u\fR, \fB\-\-user\fR \fIname\fR or \fIuid\fR
+Force the
+.I who
+parameters to be interpreted as \fIuser name\fR or \fIid\fR.
+.TP
+\fB\-p\fR, \fB\-\-pid\fR \fIprocess id\fR
+Resets the
+.I who
+interpretation to be (the default) \fIprocess ID\fR's.
+.TP
+\fB\-v\fR, \fB\-\-version\fR
+Print version.
+.TP
+\fB\-h\fR, \fB\-\-help\fR
+Print help.
+.SH EXAMPLES
+.TP
+.B renice +1 987 -u daemon root -p 32
+would change the priority of process ID's 987 and 32, and all processes owned
+by users daemon and root.
+.SH NOTES
+Users other than the super-user may only alter the priority of processes they
+own, and can only monotonically increase their ``nice value'' (for security
+reasons) within the range 0 to
+.BR PRIO_MAX \ (20),
+unless a nice resource limit is set (Linux 2.6.12 and higher).  The
+super-user may alter the priority of any process and set the priority to any
+value in the range
+.BR PRIO_MIN \ (\-20)
+to
+.BR PRIO_MAX .
+Useful priorities are: 20 (the affected processes will run only when nothing
+else in the system wants to), 0 (the ``base'' scheduling priority), anything
+negative (to make things go very fast).
+.SH FILES
+.TP
+.B /etc/passwd
+to map user names to user ID's
+.SH SEE ALSO
+.BR getpriority (2),
+.BR setpriority (2)
+.SH BUGS
+Non super-users can not increase scheduling priorities of their own processes,
+even if they were the ones that decreased the priorities in the first place.
+.PP
+The Linux kernel (at least version 2.0.0) and linux libc (at least version
+5.2.18) does not agree entirely on what the specifics of the systemcall
+interface to set nice values is.  Thus causes renice to report bogus previous
+nice values.
+.SH HISTORY
+The
+.B renice
+command appeared in 4.0BSD.
+.SH AVAILABILITY
+The renice command is part of the util-linux package and is available from
+.UR ftp://\:ftp.kernel.org\:/pub\:/linux\:/utils\:/util-linux/
+Linux Kernel Archive
+.UE .