Re: puzzling cron job!!

["Rick L. Mantooth" <rickdman cyberramp net>]

Vineeta,

On Sat, 31 Oct 1998, Vineeta wrote:

> I have the foll. entry in my crontab file for root:
> 0 19 9 10 5 /etc/xxx          
> 1 19 9 10 5 /usr/bin/yyy   
            ^ is the reason the command executed on Friday.(yesterday)

for Oct 9 I would have used:
0 19 9 10 * /etc/xxx
1 19 9 10 * /usr/bin/yyy

For every Friday in Oct:
0 19 * 10 5 /bin/whatever..

prompt% man 5 crontab
<clip>
              field          allowed values
              -----          --------------
              minute         0-59
              hour           0-23
              day of month   0-31
              month          1-12 (or names, see below)
              day of week    0-7 (0 or 7 is Sun, or use names)
</clip>

Rick
> 
> This was the change i had made in the crontab file on 9th oct,1998.
> After that i did not reboot my linux box.
> Now,today when i came & checked my mail,i saw that the cron job was 
> executed yesterday at 7pm.
> Between 9th oct & today i rebooted my m/c on 28th oct,1998.
> I am puzzled as to how cron works.
> Acc. to the entry in crontab file the job was supposed to be executed
> on 9/10/98 at 19:00 & 19:01.
> then,why did it execute yesterday???
> It did not execute on 9th oct.
> 
> Any idea what's going on??
> 
> Regards,
> Vineeta
> 
> 
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--
Rick L. Mantooth	rickdman cyberramp net
http://www.cyberramp.net/~rickdman
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