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Run cron on every second Saturday ??

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# 1  
Old 07-19-2012
Run cron on every second Saturday ??
Hi,

Can anyone help in editing CRON (OR) write a script to run another script every second saturday??
I tried to make use of DATE command to find the day but couldnt proceed further.

your help is highly appreciated!

Thanks,
Mahi
# 2  
Old 07-19-2012
Perhaps you could set up a job to run between 8th and 14th of each month, and check for Saturday in the script.

Code:
0 3 8-14 * * # pick your own time

Code:
[ $(date '+%w') -eq 6 ] || exit

# 3  
Old 07-19-2012
Hi,

Use the following cron entry,

Code:
* * 8-14 * 6 /path_to_script

The first two asteriscs should be replaced with the minute and hour that the script is to run.

Regards

Dave

Moderator's Comments:
Mod Comment When both monthday and weekday are specified in crontab they are cumulative.
Common mistake.
methyl
Last edited by methyl; 07-19-2012 at 10:09 AM..
# 4  
Old 07-19-2012
That won't work.

It will run when either of those criteria (8-14 of the month or day 6 of the week) are matched.
# 5  
Old 07-19-2012
Run cron on every second Saturday ??
Scott,

Thanks for the inputs, but i need to skip 3rd saturday and run it on fourth saturday, like i should run script only on even numbered saturdays. Hope its clear for you.

Thanks again
# 6  
Old 07-19-2012
Absolutely right guys, I should have known - I've walked into that one once before even if it was a long tome ago.

Sorry for the incorrect info.

Regards

Dave
# 7  
Old 07-19-2012
Well, as the fourth saturday can only happen from the 22nd...

Code:
0 3 8-14,22-28 * *

Code:
$ cal 2012
                             2012

      January               February               March
Su Mo Tu We Th Fr Sa  Su Mo Tu We Th Fr Sa  Su Mo Tu We Th Fr Sa
 1  2  3  4  5  6  7            1  2  3  4               1  2  3
 8  9 10 11 12 13 14   5  6  7  8  9 10 11   4  5  6  7  8  9 10
15 16 17 18 19 20 21  12 13 14 15 16 17 18  11 12 13 14 15 16 17
22 23 24 25 26 27 28  19 20 21 22 23 24 25  18 19 20 21 22 23 24
29 30 31              26 27 28 29           25 26 27 28 29 30 31
                                            
       April                  May                   June
Su Mo Tu We Th Fr Sa  Su Mo Tu We Th Fr Sa  Su Mo Tu We Th Fr Sa
 1  2  3  4  5  6  7         1  2  3  4  5                  1  2
 8  9 10 11 12 13 14   6  7  8  9 10 11 12   3  4  5  6  7  8  9
15 16 17 18 19 20 21  13 14 15 16 17 18 19  10 11 12 13 14 15 16
22 23 24 25 26 27 28  20 21 22 23 24 25 26  17 18 19 20 21 22 23
29 30                 27 28 29 30 31        24 25 26 27 28 29 30
                                            
        July                 August              September
Su Mo Tu We Th Fr Sa  Su Mo Tu We Th Fr Sa  Su Mo Tu We Th Fr Sa
 1  2  3  4  5  6  7            1  2  3  4                     1
 8  9 10 11 12 13 14   5  6  7  8  9 10 11   2  3  4  5  6  7  8
15 16 17 18 19 20 21  12 13 14 15 16 17 18   9 10 11 12 13 14 15
22 23 24 25 26 27 28  19 20 21 22 23 24 25  16 17 18 19 20 21 22
29 30 31              26 27 28 29 30 31     23 24 25 26 27 28 29
                                            30
      October               November              December
Su Mo Tu We Th Fr Sa  Su Mo Tu We Th Fr Sa  Su Mo Tu We Th Fr Sa
    1  2  3  4  5  6               1  2  3                     1
 7  8  9 10 11 12 13   4  5  6  7  8  9 10   2  3  4  5  6  7  8
14 15 16 17 18 19 20  11 12 13 14 15 16 17   9 10 11 12 13 14 15
21 22 23 24 25 26 27  18 19 20 21 22 23 24  16 17 18 19 20 21 22
28 29 30 31           25 26 27 28 29 30     23 24 25 26 27 28 29
                                            30 31

This User Gave Thanks to Scott For This Post:
mahi_mayu069
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