shutdown ubuntu linux

October 10, 2010

How do I use shutdown command?

The shutdown command can be used to turn off or reboot a computer. Type the command as follows to shutdown server / computer immediately:

$ sudo shutdown -h now


$ sudo shutdown -h 0

How do I shutdown compute at specific time?

To shutdown computer at 6:45pm, enter:

$ sudo shutdown -h 18:45 "Server is going down for maintenance"

At 6:30pm message will go out to all user and 6:45 system will shutdown.

Please note that you can also use halt or poweroff or reboot command for stopping and restarting the system:

sudo halt


 sudo poweroff

How do I reboot computer?

Simply use reboot command:

sudo reboot


 sudo shutdown -r 0