Unix Tip #4341- January 29, 2014


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RUN ON LAST SUNDAY


If you want a job to run on the last
sunday of every month, you can use
the following syntax from within cron:

18 * * * 0 [`date "+%d"` -gt 24] && /path/to/script

i.e. on sundays at 18:00 check if
the day of the month is greater than
24 - if so run the job (if 23 is
specified the job will run on the last
2 sundays of the month)

NOTE: There back-ticks around the date
command, not single quotes.

This tip generously supported by: duncan.ferguson@egg.com


NOTE: All tips provided are USE AT YOUR OWN RISK. Tips are submitted by various unix admins around the globe. UGU suggest you read and test each tip in a non-volitile environment before placing into production.


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