UGU Unix Guru Universe
For Unix Admins, By Unix Admins
Follow ugucom on Twitter      Search  in 
Home
BEGINNERS & USERS

Events

Internet
 
 Linux
BEGINNERS & USERS
Software
Linux Vendors
Usenet NewsGroups
Books & Publications
 
 Shop
Cool Admin Gifts!
Gadgets
T-Shirts
Books
 
 Unix Guru Universe
About
Add Link
Feedback
 
 
UGU: Unix Guru Universe - Unix Tip #4341- January 29, 2024 - Home : Help : Today's Tip
Unix Tip #4341- January 29, 2024

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


I want to SUBSCRIBE and get a UGU Tip everyday.
I want to UNSUBSCRIBE and NOT get a UGU Tip everyday.

If you have a UNIX TIP let us know, we just may use it:
(All tips become the property of the Unix Guru Universe)
Email Address:

Yes, email me a Hot Unix Tip everday.

Enter Hot Unix Tip (optional):

Yes, I will support this tip

Captcha (not case sensitive):


Please enter the above letters:

 
Copyright 1994-2024 Unix Guru Universe