poweroff

poweroff: turn the computer off.

Synopsis

poweroff

Description

poweroff ends every process, closing their files (so what they wrote reaches the disks), and turns the computer off, as its power button does. It takes no arguments.

Exit status

It does not return when it works. If the kernel refuses, the reason is printed and the status is 1.

Notes

What a process had buffered in its own standard I/O and not yet written is lost, as on Linux; programs should close their files first.

See also

reboot(1), halt(1)