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What ways are there to shut down a computer remotely? My desktop is running Ubuntu 11.04 desktop edition and when I try to shut it down remotely using ssh, it doesn't actually work. I used the command sudo shutdown now. Afterwards, it said that the system is going down for maintenance NOW or whatever. However, when I got home, I came to discover that the computer was still on stuck on the Plymouth shut-down screen.

I would like to know some other ways to shut down remotely and it would also be nice to know why sudo shutdown now doesn't actually work.

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up vote 10 down vote accepted

Shutdown doesn't turn off the computer unless you use the -P option:

sudo shutdown -P now

Alternatively you can use sudo poweroff which does the same thing.

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...or use sudo halt. – Nathan Osman May 11 '11 at 0:27

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