On 07/29/2012 02:28 PM, Mark LaPierre wrote:
On 07/29/2012 02:33 PM, Charlie Brune wrote:
On 07/28/2012 08:20 AM, Tony Molloy wrote:
On Saturday 28 July 2012 12:03:09 Frank Murphy wrote:
15 18 22-28 * 2 /command
I thought the last tuesday would be covered by above.
But it has run everyday since 22nd.
Have googled a bit:
http://hintsforums.macworld.com/showthread.php?t=25110
plus other crontab pages.
http://hintsforums.macworld.com/member.php?s=2584787478dc5ab0791da9
ba8d650aa5&u=28924 15 18 22-28 * * test 'date +\%a' != Tue ||
/command
Am uncertain if above would work ootb.
man crontab (22 September 2010) doesn't shed light on this.
Try the following
eg. this picks out the first sunday of the month
07 03 1-7 * * test `date +\%a` = Sun && /usr/local/bin/backup-full
So
15 18 22-28 * * test 'date +\%a' = Tue && command
Tony
Not sure if your syntax will work. If it doesn't, here's what has worked
for me:
23 1 22-28 * * [ `date +\%a` == "Tue" ] && /usr/local/bin/my-script
Charlie
If you are firing off a script with this why don't you build the logic
into the script? Let cron fire off the script every Tuesday. The
script can determine if it's the correct Tuesday and take whatever
action you want if it is or exit if it isn't.
That would work too.
It's just a matter of taste and where you want scheduling logic to be.
I prefer to have all of the logic on when the script should run is in
one place. That way, if I change my mind on when the script runs, I
only have one file to examine and edit to change it.
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