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Date:      Wed, 16 Apr 1997 09:38:02 +1000 (EST)
From:      "Daniel O'Callaghan" <danny@panda.hilink.com.au>
To:        smc@servtech.com
Cc:        freebsd-hackers@freebsd.org
Subject:   Re: crontab question
Message-ID:  <Pine.BSF.3.91.970416093307.10264m-100000@panda.hilink.com.au>
In-Reply-To: <3353e8cb0.49af@cyber2.servtech.com>

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On Tue, 15 Apr 1997 smc@servtech.com wrote:

> What I'd like to do is set up a cron task that runs on either the first
> or last Sunday of every month.  As an experiment, I've got:
> 
> 0       14      *       *       0/4     root    mail -s "cron test" root
> 
> This seems to be frustratingly close, but it leaves me guessing which
> Sunday it will run on, and it hasn't been in long enough to run yet.

Which do you *want* it to run on?

0       14      1-7      *       0     root    mail -s "cron test" root
will run on the first Sunday.
 
0       14      25-31    1,3-12     0     root    mail -s "cron test" root
0       14      21-28    2          0     root    mail -s "cron test" root

will run on most last Sundays.

Danny



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