Auto-shutdown for Linux machine

If you want to schedule more than just a shutdown, crontab is the tool generally used for running commands on a recurring schedule.

You should to be root:

# su

Then, type the root's password

Password:

Then, use this command:

# crontab -e

Add the following line:

55 18 * * /sbin/shutdown -h 19:00

It will auto-shutdown computer at 19:00 (after prompt users at 18:55) everyday.

To make it works immediately, you need to restart cron service:

# /etc/init.d/crond restart

That's it. :)