Upgrades can occur on Linux at any time, or never. It depends when the cronjob is scheduled. The other nice thing is only limited things require reboots. You c

Upgrades can occur on Linux at any time, or never. It depends when the cronjob is scheduled. The other nice thing is only limited things require reboots. You can find that out by "needs-restarting -r" If you're being tricky, you can parse that and insert a "shutdown -h $TIME" if you parse needs-restarting as yes.