|Linux / Unix Command: poweroff|
NAMEhalt, reboot, poweroff - stop the system.
SYNOPSIS/sbin/halt [-n] [-w] [-d] [-f] [-i] [-p] [-h]
/sbin/reboot [-n] [-w] [-d] [-f] [-i]
/sbin/poweroff [-n] [-w] [-d] [-f] [-i] [-h]
DESCRIPTIONHalt notes that the system is being brought down in the file /var/log/wtmp, and then either tells the kernel to halt, reboot or poweroff the system.
If halt or reboot is called when the system is not in runlevel 0 or 6, in other words when it's running normally, shutdown will be invoked instead (with the -h or -r flag). For more info see the shutdown(8) manpage.
- Don't sync before reboot or halt.
- Don't actually reboot or halt but only write the wtmp record (in the /var/log/wtmp file).
- Don't write the wtmp record. The -n flag implies -d.
- Force halt or reboot, don't call shutdown(8).
- Shut down all network interfaces just before halt or reboot.
- Put all harddrives on the system in standby mode just before halt or poweroff.
- When halting the system, do a poweroff. This is the default when halt is called as poweroff.
SEE ALSOshutdown(8), init(8)
Important: Use the man command (% man) to see how a command is used on your particular computer.