How to shutdown computer from cmd

A quick way to shutdown or restart your computer or to schedule a computer shutdown in some time without any external software. Most of you are using a software to schedule a system reboot or shutdown. 
But a geek never relies on any software. Right? :)

Here we go:
Just open your command prompt & play around. :)

1. For Shut Down

shutdown -s

2. For Restarting computer

shutdown -r

3. To Log-off

shutdown -l

-s, -r, -l parameters tells your computer to perform which action from above.

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Now what if you want to shutdown your computer at a specified time. No worries :)

we have another trick to do so:

Scheduled Shutdown:

shutdown -s -t 120

That's all for today. Stay tuned for more. :)

Good day guys...