NAME

       poweroff, reboot, halt - Power off, reboot, or halt the machine

SYNOPSIS

       poweroff [OPTIONS...]

       reboot [OPTIONS...]

       halt [OPTIONS...]

DESCRIPTION

       poweroff, reboot, and halt may be used to power off, reboot, or halt the machine. All three commands take
       the same options.

OPTIONS

       The following options are understood:

       --help
           Print a short help text and exit.

           Added in version 253.

       --halt
           Halt the machine, regardless of which one of the three commands is invoked.

           Added in version 253.

       -p, --poweroff
           Power off the machine, when either halt or poweroff is invoked. This option is ignored when reboot is
           invoked.

           Added in version 253.

       --reboot
           Reboot the machine, regardless of which one of the three commands is invoked.

           Added in version 253.

       -f, --force
           Force immediate power-off, halt, or reboot. If specified, the command does not contact the init
           system. In most cases, filesystems are not properly unmounted before shutdown. For example, the
           command reboot -f is mostly equivalent to systemctl reboot -ff, instead of systemctl reboot -f.

           Added in version 253.

       -w, --wtmp-only
           Only write wtmp shutdown entry, do not actually power off, reboot, or halt.

           Added in version 253.

       -d, --no-wtmp
           Do not write wtmp shutdown entry.

           Added in version 253.

       -n, --no-sync
           Don't sync hard disks/storage media before power-off, reboot, or halt.

           Added in version 253.

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

           Added in version 253.

EXIT STATUS

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

NOTES

       These commands are implemented in a way that preserves basic compatibility with the original SysV
       commands.  systemctl(1) verbs poweroff, reboot, halt provide the same functionality with some additional
       features.

       Note that on many SysV systems halt used to be synonymous to poweroff, i.e. both commands would equally
       result in powering the machine off. systemd is more accurate here, and halt results in halting the
       machine only (leaving power on), and poweroff is required to actually power it off.

SEE ALSO

       systemd(1), systemctl(1), shutdown(8), wall(1)