cron behavior

[will]

I don't know if you can do what you're trying to do.  The 1/4 notation 
will actually mean every 4th weekday.  So that should be kicking off at 
4:15 on sundays and thursdays, i think.  Something like that.

You can do 1 in the month-day column and that'll kick off on the first of
the month--which isn't quite what you're looking for.  I don't think you
can specify "fourth monday" via cron.

Another thing you could do is have cron kick off a perl script every 
Monday.  That perl script then checks to see if it's a fourth Monday or 
not and if so then runs your backup job.

hth--
/will


On Mon, 31 Dec 2001, jbk wrote:

> I want my full backup script to run every fourth Monday and
> I thought the following sintax would do that, but this
> morning it ran again, this is the second Monday in the
> cycle.
> 
> '15 4 * * 1/4 /etc/backup/backup monday
> >>/var/log/backup/tape.log'
> 
> Does this syntax only work on the HOUR & DAYS_OF_MONTH
> fields? The man page doesn't say.
> 
> The backup script is dependent on the DAY_OF_WEEK field, I
> could change this but it would be two weeks of testing
> again.
> 
> Jim Kelly-Rand
> 
> _______________________________________________
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> 

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