Topic 'Re: Debian - cron execution order' in forum 'All Things Unix' - dslreports.com

Re: Debian - cron execution order

Wed, 01 Jul 2009 09:54:22 EDT

yock posted : Understand that it makes no sense for it to wait. If you need one script to finish before another one runs, why not call it from the script you scheduled?
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Re: Debian - cron execution order

Wed, 01 Jul 2009 09:51:50 EDT

shearer posted : Ok - understood. Thanks all.

Re: Debian - cron execution order

Wed, 01 Jul 2009 09:38:38 EDT

nwrickert posted : If order matters, then change the time of one of them to be sure that they run in the wanted order.
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Re: Debian - cron execution order

Wed, 01 Jul 2009 09:31:44 EDT

yock posted : No

Re: Debian - cron execution order

Wed, 01 Jul 2009 09:30:39 EDT

shearer posted :

said by SirMeowmix_III :

... execution is done serially, so bla1 and bla2 will run concurrently but when I was debugging cron bla1 is invoked first followed by bla2.

Does cron wait for bla1 to finish first before starting bla2?

Re: Debian - cron execution order

Wed, 01 Jul 2009 08:40:27 EDT

anon posted : Yock has a good point, to be pedantic, it's top-down but execution is done serially, so bla1 and bla2 will run concurrently but when I was debugging cron bla1 is invoked first followed by bla2.

Re: Debian - cron execution order

Wed, 01 Jul 2009 08:40:17 EDT

anon posted : It's not processed alphabetically, it's processed in a top-down order based on the ordering in the respective crontab. Should "bla2" appear before "bla1" in the respective crontab it would be executed first.

Re: Debian - cron execution order

Wed, 01 Jul 2009 08:31:32 EDT

yock posted : A note to the FreeBSD regarding general Cron behavior states that there is no determination of order for same time cron jobs.

»lists.freebsd.org/pipermail/free···538.html

That makes sense, considering the granularity available to you for scheduling. There are better ways than alpha-numeric sorting to order operations in cron.
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Re: Debian - cron execution order

Wed, 01 Jul 2009 08:15:01 EDT

anon posted : Not alphabetical, top-down based on the ordering in the respect crontab.

Re: Debian - cron execution order

Wed, 01 Jul 2009 07:41:29 EDT

shearer posted :

said by SirMeowmix_III :

top-down matching on those applicable to the current date/time

Thanks. I had a feeling it was by alphabetical order...

Re: Debian - cron execution order

Tue, 30 Jun 2009 11:35:50 EDT

anon posted : top-down matching on those applicable to the current date/time. If it is 00:00 on July 05, 2009 then:

scriptblablabla1 will execute followed by scriptblahblabla2

Debian - cron execution order

Tue, 30 Jun 2009 11:10:44 EDT

shearer posted : On Debian, just suppose I have a crontab for root account like this:

jena:/home/shearerc# crontab -l -u root# m h  dom mon dow   command SHELL=/bin/bashPATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin 0 0 5 7 * scriptblablabla10 0 * * 0 scriptblablabla2

On July 5, 2009 (which is a Sunday), which task will cron execute first? I read man pages for cron & crontab but found no mention of execution order. thanks!