On Fri, Mar 09, 2012 at 12:08:38PM +0100, Jochen Spieker wrote: > Florian Ernst: > > On Fri, Mar 09, 2012 at 05:09:23AM +0000, T o n g wrote: > >> Is there any easy way to schedule a job for a duration that is greater > >> than one month but shorter than 2 months? Any duration will do, as long > >> as it is easy to schedule. > > > > Easy? Hmmm. > > > > 0 12 * * 1 [ $(expr $(/bin/date +\%s) / 60 / 60 / 24 / 7 \% 8) -eq 3 ] && myscript > > Nice. Oops, forgot to paste the trailing ... || /bin/true which keeps newer cron from reporting the job as failed whenever [ ... ] doesn't exit successfully. > Is there any reason why you don't use "date '+%V'" (or %W or %U)? That'd break with every new year: for instance, [ $(expr $(/bin/date +\%V) \% 8) -eq 1 ] would trigger on ISO week 1, 9, ..., 41, 49 and then again in the next year on ISO week 1, resulting in a shorter interval "between" the years than desired. Cheers, Flo
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