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shutdown

We may think that why to bother typing commands when using the GUI to shutting down the computer is easy and straight. But at time we may want to shut down the computer after some time when the download finishes or some other task completes. But we cannot wait until that time. So we can use shutdown command in such cases. For example, if you want to shut down the computer at 2:12 pm then you can use the following command in your ubuntu box:

sudo shutdown -h 14:12 "Going to Shutdown at 2:12 pm"

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