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SHUTDOWN(8) - phpMan

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SHUTDOWN(8)                                  shutdown                                 SHUTDOWN(8)



NAME
       shutdown - Halt, power-off or reboot the machine

SYNOPSIS
       shutdown [OPTIONS...] [TIME] [WALL...]

DESCRIPTION
       shutdown may be used to halt, power-off or reboot the machine.

       The first argument may be a time string (which is usually "now"). Optionally, this may be
       followed by a wall message to be sent to all logged-in users before going down.

       The time string may either be in the format "hh:mm" for hour/minutes specifying the time
       to execute the shutdown at, specified in 24h clock format. Alternatively it may be in the
       syntax "+m" referring to the specified number of minutes m from now.  "now" is an alias
       for "+0", i.e. for triggering an immediate shutdown. If no time argument is specified,
       "+1" is implied.

       Note that to specify a wall message you must specify a time argument, too.

       If the time argument is used, 5 minutes before the system goes down the /run/nologin file
       is created to ensure that further logins shall not be allowed.

OPTIONS
       The following options are understood:

       --help
           Print a short help text and exit.

       -H, --halt
           Halt the machine.

       -P, --poweroff
           Power-off the machine (the default).

       -r, --reboot
           Reboot the machine.

       -h
           Equivalent to --poweroff, unless --halt is specified.

       -k
           Do not halt, power-off, reboot, just write wall message.

       --no-wall
           Do not send wall message before halt, power-off, reboot.

       -c
           Cancel a pending shutdown. This may be used cancel the effect of an invocation of
           shutdown with a time argument that is not "+0" or "now".

EXIT STATUS
       On success, 0 is returned, a non-zero failure code otherwise.

SEE ALSO
       systemd(1), systemctl(1), halt(8), wall(1)



systemd 215                                                                           SHUTDOWN(8)


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