I am new on Ubuntu and I want to ask you is the right way to reboot Ubuntu server (14.04.5 LTS) on 2:30 AM of every 15 days (two times of month)?
30 2 15/* * * path/to/shutdown --reboot
I am new on Ubuntu and I want to ask you is the right way to reboot Ubuntu server (14.04.5 LTS) on 2:30 AM of every 15 days (two times of month)?
30 2 15/* * * path/to/shutdown --reboot
From this question
The following also works fine, it executes your command on the 15th and the 30th at 02:00 AM of every month:
0 2 */15 * * <yourCommand>
Back to your question
0 2 */15 * * shutdown -r now
Also see this question to learn more about cron