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[ILUG] shellscripts from crontab

[ILUG] shellscripts from crontab

Donncha O Caoimh donncha.ocaoimh at tradesignals.com
Fri Feb 2 11:48:56 GMT 2001


thanks lads.. it's obvious but when you've been staring at a problem for
so long, you know the way it gets!

Donncha.


kevin lyda wrote:
> 
> On Fri, Feb 02, 2001 at 11:12:36AM +0000, Donncha O Caoimh wrote:
> > On a related note, has anyone any nice ideas about appending crontab
> > entries to a user crontab file? I mean, how to do it unattended. Perhaps
> > some manipulation of the EDITOR variable perhaps? Creating a new crontab
> > is easy, appending is the problem which led me to use /etc/crontab in
> > the first place..
> 
> this solution would work but it might fail if two processes are modifying
> the crontab at once:
> 
>     crontab -l > crontab.bak
>     ( cat crontab.bak ; echo '1 2 * * * /usr/local/bin/foo' ) | crontab -
>




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