57 lines
1.8 KiB
Groff
57 lines
1.8 KiB
Groff
'\" -*- coding: UTF-8 -*-
|
|
.\" Copyright (C) 1997 Miquel van Smoorenburg.
|
|
.\"
|
|
.\" This program is free software; you can redistribute it and/or modify
|
|
.\" it under the terms of the GNU General Public License as published by
|
|
.\" the Free Software Foundation; either version 2 of the License, or
|
|
.\" (at your option) any later version.
|
|
.\"
|
|
.\" This program is distributed in the hope that it will be useful,
|
|
.\" but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
.\" GNU General Public License for more details.
|
|
.\"
|
|
.\" You should have received a copy of the GNU General Public License
|
|
.\" along with this program; if not, write to the Free Software
|
|
.\" Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
.\"
|
|
.TH RUNLEVEL 8 "May 27, 1997" "" "Linux System Administrator's Manual"
|
|
.SH NAME
|
|
runlevel -- find the previous and current system runlevel.
|
|
.SH SYNOPSIS
|
|
.B runlevel
|
|
.RI [ utmp ]
|
|
.SH DESCRIPTION
|
|
.B Runlevel
|
|
reads the system
|
|
.I utmp
|
|
file (typically
|
|
.IR /var/run/utmp )
|
|
to locate the runlevel record, and then
|
|
prints the previous and current system runlevel on its standard output,
|
|
separated by a single space. If there is no previous system
|
|
runlevel, the letter \fBN\fP will be printed instead.
|
|
.PP
|
|
If no
|
|
.I utmp
|
|
file exists, or if no runlevel record can be found,
|
|
.B runlevel
|
|
prints the word \fBunknown\fP and exits with an error.
|
|
.PP
|
|
.B Runlevel
|
|
can be used in \fIrc\fP scripts as a substitute for the System-V
|
|
\fBwho -r\fP command.
|
|
However, in newer versions of \fBinit\fP(8) this information
|
|
is also available in the environment variables \fBRUNLEVEL\fP and
|
|
\fBPREVLEVEL\fP.
|
|
.SH OPTIONS
|
|
.\"{{{ utmp
|
|
.IP \fIutmp\fP
|
|
The name of the \fIutmp\fP file to read.
|
|
.\"}}}
|
|
.SH SEE ALSO
|
|
.BR init (8),
|
|
.BR utmp (5)
|
|
.SH AUTHOR
|
|
Miquel van Smoorenburg, miquels@cistron.nl
|