Running bash script 10 minutes after the system start

Question

I'm trying to run a bash script 10 minutes after my system startup and on every reboot. I was planning to the @reboot of crontab, but I'm not sure of two things

• Whether it will run on the first system start or only on reboot.
• How to delay the run by 10 minutes after the reboot.

What expression would suit my situation the best? Please note that I can't run 'at' or system timer to accomplish this as both are not accessible to us. I'm working on the RHEL 7..

Answer 1

I would just sleep 600 at the beginning of your reboot script. Sure, there's probably a more "expert" way of doing it, but it'll work.

Answer 2

I think your question may be more appropriate on the Unix and Linux stack exchange, because I found two answers over there which directly address your question:

https://unix.stackexchange.com/questions/57852/crontab-job-start-1-min-after-reboot

Basically you can always just add sleep 600 to the beginning of your cronjob invocation.

As to whether you should be running a cronjob vs an init script:

https://unix.stackexchange.com/questions/188042/running-a-script-during-booting-startup-init-d-vs-cron-reboot

There are a handful of subtle differences, but basically, your cron @reboot will run each time the system starts and may be more easy to manage as a non-root user.