create cron in FC5 question

Manuel Arostegui Ramirez manuel at todo-linux.com
Sat Apr 21 07:25:09 UTC 2007


El Sábado, 21 de Abril de 2007 08:51, escribió:
> Manuel Arostegui Ramirez wrote:
> > El Sábado, 21 de Abril de 2007 00:17, Tom Poe escribió:
> >> Manuel Arostegui Ramirez wrote:
> >>> El Sábado, 21 de Abril de 2007 00:06, Tom Poe escribió:
> >>>> Manuel Arostegui Ramirez wrote:
> >>>>> El Viernes, 20 de Abril de 2007 23:44, Tom Poe escribió:
> >>>>>> Manuel Arostegui Ramirez wrote:
> >>>>>>> 2007/4/20, Tom Poe <tompoe at fngi.net>:
> >>>>>>>> I googled for cron howto, and noticed that the /etc/crontab file
> >>>>>>>> is empty.  I want to run an event on a daily basis, and need to
> >>>>>>>> know where to add, and how to add an event to run jpodcatcher once
> >>>>>>>> a day. Any help appreciated.
> >>>>>>>> Tom
> >>>>>>>
> >>>>>>> First off, if you want it to run in the system cron, just
> >>>>>>> /etc/crontab, on the other hand if you want it as an user cron,
> >>>>>>> just: crontab -e
> >>>>>>> Anyways, this is an example of a basic job running daily at, for
> >>>>>>> instance, 11:00 AM
> >>>>>>>
> >>>>>>> SHELL=/bin/bash
> >>>>>>> PATH=/sbin:/bin:/usr/sbin:/usr/bin
> >>>>>>> MAILTO=root
> >>>>>>> HOME=/
> >>>>>>>
> >>>>>>> # run-parts
> >>>>>>> 01 * * * * root run-parts /etc/cron.hourly
> >>>>>>> 02 4 * * * root run-parts /etc/cron.daily
> >>>>>>> 22 4 * * 0 root run-parts /etc/cron.weekly
> >>>>>>> 42 4 1 * * root run-parts /etc/cron.monthly
> >>>>>>> 00 11 * * * root /home/manu/babelserver.sh
> >>>>>>>
> >>>>>>> got it?
> >>>>>>>
> >>>>>>> You might want to read the Crontab manual.
> >>>>>>>
> >>>>>>> Hope this helps
> >>>>>>> All the best.
> >>>>>>>
> >>>>>>> Manuel.
> >>>>>>
> >>>>>> Manuel:  Thanks.  Sounds right to me.  Problem is, on my FC5, the
> >>>>>> /etc/crontab file is empty.  There are directories for cron.daily,
> >>>>>> cron.weekly, etc.  When I cd to those directories, there are several
> >>>>>> files, each of which is running a shell script.  So, do I have to
> >>>>>> create a shell script, and copy it to the directory I want, or can I
> >>>>>> place a cron command someplace?
> >>>>>> Tom
> >>>>>
> >>>>> Actually, it's up to you, whatever suits for you :-)
> >>>>> Cheers
> >>>>
> >>>> Manuel:  Please share your FC5 crontab file.  Mine is empty.  What's
> >>>> in yours?
> >>>> Thanks, Tom
> >>>
> >>> I already did it :-)
> >>>
> >>> [manu at Arbusto ~]$ cat /etc/crontab
> >>> SHELL=/bin/bash
> >>> PATH=/sbin:/bin:/usr/sbin:/usr/bin
> >>> MAILTO=root
> >>> HOME=/
> >>>
> >>> # run-parts
> >>> 01 * * * * root run-parts /etc/cron.hourly
> >>> 02 4 * * * root run-parts /etc/cron.daily
> >>> 22 4 * * 0 root run-parts /etc/cron.weekly
> >>> 42 4 1 * * root run-parts /etc/cron.monthly
> >>> 00 11 * * * root /home/manu/babelserver.sh
> >>
> >> Manuel:  I thought so.  Was your /etc/crontab file empty when you
> >> installed FC5?
> >> Tom
> >
> > To be honest, I can't remember but probably it wasn't empty.
> > Do you have the daemon file, the man pages of cron....don't you?
> > [root at Arbusto ~]# rpm -qa | grep -i crontab
> > crontabs-1.10-7.1
> >
> > Cheers
>
> Manuel:  I think FC5 has a file for startup, someplace, and it calls for
> cron to be run hourly, daily, etc., but it isn't the /etc/crontab file.
> I am looking for someone that knows what that file is, or how FC5
> handles cron.  I don't think it's handled like what you have.
> Tom

Of course it's not, you asked for the crontab file, not for the daemon one.
Cron is launched by the /etc/init.d/crond daemon, which reads all the 
configuration in /etc/crontab, including of course the daily one, the hourly, 
weekly and stuff...

-- 
Manuel Arostegui Ramirez.

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