poweroff

poweroff [options]

System administration command. Close out filesystems, shut down the system, and power off. Because this command immediately stops all processes, it should be run only in single-user mode. If the system is not in runlevel 0 or 6, poweroff calls shutdown -h, then performs a poweroff.

Options

-d
Suppress writing to /var/log/wtmp.

-f
Call reboot or halt and not shutdown, even when shutdown would normally be called. This option is used to force a hard halt or reboot.

-h
Place hard drives in standby mode before halt or poweroff.

-i
Shut down network interfaces before reboot.

-n
Suppress normal call to sync.

-w
Suppress normal execution; simply write to /var/log/wtmp.