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UGU: Unix Guru Universe - Unix Tip #4341- January 29, 2025
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 Unix Tip #4341- January 29, 2025
 
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.
  
LAST 5 TIPS
 4340
 - SIMPLE MASK OVERLOOKED
 4339
 - AUTO WORD COMPLETION
 4338
 - CHANGE THE SUFFIX
 4337
 - DELETING BLANK LINES USING GREP
 4336
 - LIMIT THE SIZE OF DATA AREA
 
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