Restart, shutsdown, logoff Windows from command line

cmdprompt
It’s often need to restart, shutsdown, logoff Windows from command line. For example, if you connect to OS via remote desktop protocol you can’t restart/shutdown it from UI.
In such case you can use next:

shutdown -r
restarts os

shutdown -s
shutdown os

shutdown -l
logoff os

shutdown -t xx
where xx is number of seconds to wait till shutdown/restart/logoff

shutdown -i
gives you a dialog box to fill in what function you want to use

shutdown -a
aborts the previous shutdown command....very handy!

Additional options:

-f
force the selected action

Thanx to http://stackoverflow.com/a/162305