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Date:      Fri, 25 Nov 2005 00:12:03 -0500
From:      David Scheidt <dscheidt@panix.com>
To:        Anirban Adhikary <anirban.adhikary@123india.net>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: doubts
Message-ID:  <20051125051203.GA17581@panix.com>
In-Reply-To: <000601c5f17a$0eda0340$ae01a8c0@asp.radix.srv>
References:  <000601c5f17a$0eda0340$ae01a8c0@asp.radix.srv>

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On Fri, Nov 25, 2005 at 10:08:15AM +0530, Anirban Adhikary wrote:
> Hi guys. This is Anirban. I have a doubt on crontab.The question is
> 
> how to write a crontabwhich takes the back-up at 11:59 pm daily and every tuesday of the week
> Hope i will receive the answer soon.

I don't quite understand what you want.  The format of a line in a
crontab file is as follows.  There are five columns that specify the
time to run the job at:

Minutes  Hours  Day of Month   Month  Day of week 

59       23          *          *      *           /path/to/script  

Would run /path/to/script every day at 11:59 pm.  If what you want to
do is only run it on tuesday, 

59     23		*  *  2   /path/to/script 

The utility to install crontabs is called crontab.  The format of
entries is defined in the crontab(5) man page.  'man 5 crontab' will
allow you to read that.





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