How to automaticly start process if porcess was finished or killed. Linux

Question

How to automaticly start process if process was killed or finished Linux Ubuntu 18.04? For example I've got process name Test, that process was killed because some problem... I need to automaticly start that process with screen command. I need a script for that, but porcess should start with screen command, and cron have to check it every 5 minutes.

Answer 1

You can set up a cron to check if process running or not every 5mins.

*/5 * * * * bash /tmp/check_process.sh

and in check_process.sh check if process is running or not. If not running then start the process.

    #!bin/bash
pgrep -x {process-name}
if($? != 0 )
then 
screen -d -m {process_start_command}
fi