cron behavior

will willg at bluesock.org
Mon Dec 31 13:22:26 EST 2001


On Mon, 31 Dec 2001, Scott Lanning wrote:
> 
> I found the cron manpage confusing until I realized you have to do
> 
>     $ man 5 crontab
> 
> to get the useful one. Reading that, I think 1/4 isn't right
> because the '/4' is "used in conjunction with ranges".
> '1' might techically be a range, but probably not what you
> expected. I don't think there's a way to directly say
> "every 4th Monday" (is there?), but I guess if you put
> "day of month" to an appropriate range (22-28?) and "day of week"
> to 1 (for Monday), then that might work.

That'll have your script kick off on Mondays as well as days of the month 
22 through 28.  Cron does an or between month-days and week-days.


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