NAME

       halt, poweroff, reboot - Halt, power-off or reboot the machine

SYNOPSIS

       halt [OPTIONS...]

       poweroff [OPTIONS...]

       reboot [OPTIONS...]

DESCRIPTION

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

OPTIONS

       The following options are understood:

       --help
           Print a short help text and exit.

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

       -p, --poweroff
           Power-off the machine, regardless of which one of the three commands is invoked.

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

       -f, --force
           Force immediate halt, power-off, or reboot. When specified once, this results in an immediate but
           clean shutdown by the system manager. When specified twice, this results in an immediate shutdown
           without contacting the system manager. See the description of --force in systemctl(1) for more
           details.

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

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

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

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

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 halt, poweroff, reboot 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)