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111 lines
3.3 KiB
Groff
111 lines
3.3 KiB
Groff
.\" Copyright (c) 1990, 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. 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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.\"
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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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.\" @(#)reboot.8 8.1 (Berkeley) 6/9/93
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.\"
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.Dd June 9, 1993
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.Dt REBOOT 8
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.Os
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.Sh NAME
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.Nm reboot ,
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.Nm halt
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.Nd
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stopping and restarting the system
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.Sh SYNOPSIS
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.Nm halt
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.Op Fl nqp
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.Nm reboot
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.Op Fl nqp
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.Nm fasthalt
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.Op Fl nqp
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.Nm fastboot
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.Op Fl nqp
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.Sh DESCRIPTION
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The
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.Nm halt
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and
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.Nm reboot
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utilities flush the file system cache to disk, send all running processes
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a SIGTERM (and subsequently a SIGKILL) and, respectively, halt or restart
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the system.
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The action is logged, including entering a shutdown record into the login
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accounting file.
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.Pp
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The options are as follows:
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.Bl -tag -width Ds
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.It Fl n
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If the
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.Fl n
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option is specified,
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the file system cache is not flushed.
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This option should probably not be used.
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.It Fl q
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If the
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.Fl q
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option is specified,
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the system is halted or restarted quickly and ungracefully, and only
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the flushing of the file system cache is performed.
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This option should probably not be used.
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.It Fl p
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If the
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.Fl p
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option is specified, then the system will turn off the power
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if it can. This is of course likely to make
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.Nm reboot
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rather similar to
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.Nm halt.
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.El
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.Pp
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The
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.Nm fasthalt
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and
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.Nm fastboot
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utilities are nothing more than aliases for the
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.Nm halt
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and
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.Nm reboot
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utilities.
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.Pp
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Normally, the
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.Xr shutdown 8
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utility is used when the system needs to be halted or restarted, giving
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users advance warning of their impending doom.
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.Sh SEE ALSO
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.Xr utmp 5 ,
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.Xr boot 8 ,
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.Xr shutdown 8 ,
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.Xr sync 8
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.Sh HISTORY
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A
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.Nm reboot
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command appeared in
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.At v6 .
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