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Recently I had a problem with the authentication in ubuntu 12.04. I managed to solve the problem by using this procedure But after successfully changing my password, I couldn't find a way to reboot my laptop. I wonder how can one reboot in that freakish environment?

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What do you mean by reboot? – edwin Jul 27 '13 at 0:58
up vote 1 down vote accepted

The answer is right in that procedure:

Type in reboot. If that doesn't work, hit Ctrl+Alt+Del

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You can reboot via the terminal with shutdown -r now, assuming you're root.

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Just try reboot command if you are root.

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