Shutdown Timer

This is a simple tip. Go to the terminal and type: sudo shutdown -h +45 After that your system will shut down in 45 minutes. You can also specify the exact time: sudo shutdown -h 22:30 If you want to cancel the shutdown timer you should use the flag "-c": sudo shutdown -c You can also use the flag "-r" or "-s", to reboot or make the system sleep. Read man shutdown for further documentation.