Ubuntu Shutdown Command

below is a collection of ubuntu shutdown command and one of them we  often use it, be as timer when we listen  music and we fell asleep, then ubuntu will be shutdown automaticaly.

here is command shutdown management for ubuntu

Shutdown Timer Countdown
Login as root

$ sudo su
$ shutdown +60 -P (60 minute)
$ sudo shutdown -h +60 (60 minute)
$ shutdown -P 15:00 (shutdown at 15:00)

Shutdown Now

$ init 0
$ poweroff
$ halt

Waking Up (switch on) Computer

$ echo “+00-00-00 00:10:00″ > /proc/acpi/alarm   

booting your computer 10 minute after switch off


Restart

$ reboot
$ shutdown -r 21:00 ( restart at 21:00)

Cancel Shutdown

$ shutdown -C

Happy Testing...!!