Cron @reboot

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Hi,
I read an article that suggest using a special string @reboot on a user cron file. This can be used to execute a script at startup after a reboot command has been issued.
Does anyone know if this @reboot only works if the system is restarted by executing the reboot command, or will it still work if the system reboots but reboot command not executed, such as a system crash/reboot?

http://www.cyberciti.biz/faq/linux-execute-cron-job-after-system-reboot/

GT
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PS Guru 6494 points
14 February 2014 9:32 AM

Just tested this in a VM because the man page is a bit vague.

I pulled the power (ie. dirty shutdown) and the script ran fine on boot.

GT Newbie 12 points
14 February 2014 9:51 AM

That's a good test and thanks for trying.
I am working from home today, so cannot perform any tests as you have done.
My script worked fine with a reboot command, but did not start cleanly after a forcefull reboot with: echo 'b' > /proc/sysrq-trigger

Perhaps it is my script, I will have to look at it.
Once again, thanks.

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