halt

halt

halt [options]

System administration command: turns off the computer. Insert a note in the file /var/log/wtmp; if the system is in runlevel 0 or 6, stop all processes; otherwise, call shutdown -h.

Options

Suppress writing to /var/log/wtmp.

Call halt even when shutdown -nf would normally be called (i.e., force a call to halt, even when not in runlevel 0 or 6).

Place hard drives in standby mode before halt or power off.

Shut down network interfaces before halt.

No sync before reboot or halt.

Perform power-off when halting system.

Suppress normal call to sync.

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