How to create CRONTAB to restart ubuntu

Use cron (should already be installed): Edit crontab: sudo crontab -e The first time you might have to choose your preferred editor (like nano) Insert a line like 0 6 * * * /sbin/shutdown -r +5 at the bottom. Explanation: m h dom mon dow command minute hour dayOfMonth Month dayOfWeek commandToRun so the line 0 6 * * * /sbin/shutdown -r +5 would reboot your system every day at 6:05am. (6:00am + 5 minutes) Ctrl+X, Y, Enter should get you out of crontab (if using nano) Note: you might have to run crontab -e as root, because shutdown needs root.