GNU bash, version 5.2.15(1)-release (x86_64-pc-linux-gnu)- Debian 12.5

Each 15 seconds will verify if any prompt from our list was used, case it was will get current user and moment when that happen and will notify us , this case I used mailutils for that task

Set up:

1. Prompts we want to watch: within monitor.sh
2. How we notify case this happens (in this case I used a mailutils which used mailserver within the place)
3. Verify nobody can change our bash_history file
4. Make em executable...(chmod +x monitor_1.sh & chmod +x get_user.sh)
5. Do some testing(please)

Optional: We could change timeframe for whenver we want it to trigger, could change sleep method at the end of monitor.sh , or if you like it use cronjob(although minimal here is 1 minute).

Hope this helps!!