https://askubuntu.com/questions/187071/how-do-i-shut-down-or-reboot-from-a-terminal
For shutdown:
$ sudo poweroffFor restart:
$ sudo reboothttps://askubuntu.com/questions/187071/how-do-i-shut-down-or-reboot-from-a-terminal
For shutdown:
$ sudo poweroffFor restart:
$ sudo reboot