HALT(8)                                                   HALT(8)

     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

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     HALT(8)                                                   HALT(8)

              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)

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