schedule a crontab

rupesh_pulikool · 08-21-2004, 01:59 AM

Hi,
Please tell me how to schedule a crontab to run a script on every second
monday. Please help us with it.

Regards
Rupesh

jlliagre · 08-21-2004, 04:54 AM

Schedule it every monday (easy), then add a test in your script to skip one execution on two.

rupesh_pulikool · 08-23-2004, 07:05 AM

Thanks for ur reply,
But is it possible to schedule it with a single command

jlliagre · 08-23-2004, 07:17 AM

If you mean with a single line in the crontab, I'm sure you can put a oneliner script here that does the test.

The patterns wouldn't do it alone and I see no way to have your requisite complied there.
The closest you can set is to have every monday that fall an even (or odd) day of month, but that wouldn't work well on every month change.

elsheikhmh · 08-23-2004, 07:40 AM

well, add a static counter (with a record in a file) to the script. and let the desired code run only if the number is odd (or even).

1. read the counter from the file.
2. check if odd: run the code.
3. increment the counter.

run it weekly in the cron

mustafa

rupesh_pulikool · 08-23-2004, 11:07 AM

Thanks buddy

sjspig · 09-03-2004, 01:32 AM

I don't think there is a way to do exactly what you want with cron. You can do some of the suggestions listed or run it every 15th and 30th of the month or something similar - I'm guess this is definitely not what you want. You might find a way to determine which week it is and use the date output to determine if you want to run as well. If week is divisible by 2 with a remainder of 1 then run else don't. Hope this helps.

rupesh_pulikool · 09-04-2004, 09:32 PM

No buddy,
I have tried with this on my linux servers were by putting a (" / ") you could achieve the same from cron
But i was searching, if the same could happen with on Sun Solaris server's.