Thank you

Thank you so much Brian

Crond is steill very good. I dont think systemd timers will replace user crons, but many services such as logrotate and sysstat now use systemd-timers in place of system cron jobs

It’s up to you. But many services are moving to systemd. Why would you exact both cron and systemd running. For user crons yes. You need cron running. But for system jobs why would you use a system with no reporting

Lol

Create the Script: Create your script myscript.sh as before. Create a Timer Unit: Create a systemd timer unit, let's call it random-script.timer. This timer unit will trigger the script exactly 6 times a day at random intervals. Create a file named /etc/systemd/system/random-script.timer and add the following content: ini Copy code [Unit] Description=Random Script Timer [Timer] OnCalendar=*-*-* 00/4:00:00 RandomizedDelaySec=1800 Persistent=true [Install] WantedBy=timers.target In this example: OnCalendar specifies a cron-like expression. *-*-* means every day of the year, and 00/4:00:00 means at every 4-hour interval starting from midnight. RandomizedDelaySec specifies the maximum random delay in seconds before the script is triggered, similar to the previous example. Persistent=true ensures that if the timer is late to trigger due to the system being in sleep mode, it will catch up when the system wakes up.

I use secureCRT ssh client