poweroff

 

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 HALT(8)        Linux System Administrator's Manual        HALT(8)
 
 
 
NAME
        halt, reboot, poweroff - stop the system.
 
SYNOPSIS
        /sbin/halt [-n] [-w] [-d] [-f] [-i] [-p]
        /sbin/reboot [-n] [-w] [-d] [-f] [-i]
        /sbin/poweroff [-n] [-w] [-d] [-f] [-i]
 
DESCRIPTION
        Halt  notes  that  the system is being brought down in the
        file /var/log/wtmp, and then either tells  the  kernel  to
        halt,  reboot or poweroff the system. If halt or reboot is
        called when the system is not in runlevel 0  or  6,  shut­
        down(8)  will be invoked instead (with the flag -h or -r).
 
OPTIONS
        -n     Don't sync before reboot or halt.
 
        -w     Don't actually reboot or halt but  only  write  the
               wtmp record (in the /var/log/wtmp file).
 
        -d     Don't  write  the  wtmp record. The -n flag implies
               -d.
 
        -f     Force halt or reboot, don't call shutdown(8).
 
        -i     Shut down all network interfaces just  before  halt
               or reboot.
 
        -p     When halting the system, do a poweroff. This is the
               default when halt is called as poweroff.
 
 DIAGNOSTICS
        If you're not the superuser,  you  will  get  the  message
        `must be superuser'.
 
NOTES
        Under  older  sysvinit  releases  , reboot and halt should
        never be called directly. From release 2.74  on  halt  and
        reboot invoke shutdown(8) if the system is not in runlevel
        0 or 6. This means that if halt or reboot cannot find  out
        the  current  runlevel  (for  example,  when /var/run/utmp
        hasn't  been  initialized  correctly)  shutdown  will   be
        called, which might not be what you want.  Use the -f flag
        if you want to do a hard halt or reboot.
 
 
AUTHOR
        Miquel van Smoorenburg, miquels@cistron.nl
 
SEE ALSO
        shutdown(8), init(1)
 
 
 
                            Aug 24, 1999                   HALT(8)

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