1reboot(8)                   System Manager's Manual                  reboot(8)
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NAME

6       reboot, halt, poweroff - reboot or stop the system
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SYNOPSIS

9       reboot [OPTION]...
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11       halt [OPTION]...
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13       poweroff [OPTION]...
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DESCRIPTION

16       These programs allow a system administrator to reboot, halt or poweroff
17       the system.
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19       When called with --force or when in runlevel 0 or 6, this tool  invokes
20       the reboot(2) system call itself and directly reboots the system.  Oth‐
21       erwise this simply invokes the shutdown(8) tool  with  the  appropriate
22       arguments.
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24       Before  invoking  reboot(2), a shutdown time record is first written to
25       /var/log/wtmp
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OPTIONS

28       -f, --force
29              Does not invoke shutdown(8)  and  instead  performs  the  actual
30              action you would expect from the name.
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32       -p, --poweroff
33              Instructs the halt command to instead behave as poweroff.
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35       -w, --wtmp-only
36              Does  not  call  shutdown(8)  or  the  reboot(2) system call and
37              instead only writes the shutdown record to /var/log/wtmp
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39       --verbose
40              Outputs slightly more verbose messages  when  rebooting,  useful
41              for debugging problems with shutdown.
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ENVIRONMENT

44       RUNLEVEL
45              reboot  will  read  the  current  runlevel from this environment
46              variable if set in preference to reading from /var/run/utmp
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FILES

49       /var/run/utmp
50              Where the current runlevel will be read  from;  this  file  will
51              also  be  updated  with  the runlevel record being replaced by a
52              shutdown time record.
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54       /var/log/wtmp
55              A new runlevel record for the shutdown time will be appended  to
56              this file.
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AUTHOR

59       Written by Scott James Remnant <scott@netsplit.com>
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REPORTING BUGS

62       Report bugs at <https://launchpad.net/upstart/+bugs>
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65       Copyright © 2009 Canonical Ltd.
66       This is free software; see the source for copying conditions.  There is
67       NO warranty; not even for MERCHANTABILITY or FITNESS FOR  A  PARTICULAR
68       PURPOSE.
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SEE ALSO

71       shutdown(8) telinit(8) runlevel(8)
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75Upstart                           2009-07-09                         reboot(8)
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