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Top Forums Shell Programming and Scripting crontab entry to run every last day of the month Post 74310 by rahul123_libra on Thursday 9th of June 2005 02:30:46 AM
Old 06-09-2005
Tools

Have cron run a script on days 28, 29, 30 and 31 of every month.
Create two variables in the script, one containing today's day of the
month and another containing tomorrow's day of the month:

Code:
 TODAY=`date +%d`
 TOMORROW=`date +%d -d "1 day"`

 # See if tomorrow's day is less than today's
 if  [  $TOMORROW  -lt  $TODAY  ];  then
         echo  "This is the last day of the month"
 #       Do stuff...
 fi

Smilie

Moderator's Comments:
Mod Comment Code tags please, thanks.

Last edited by zaxxon; 10-20-2011 at 04:54 AM.. Reason: code tags
 

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calendar(1)						      General Commands Manual						       calendar(1)

Name
       calendar - calendar reminder service

Syntax
       calendar [-]

Description
       The  command  consults the file `calendar' in the current directory and prints out lines that contain today's or tomorrow's date.  The com-
       mand recognizes most month-day dates, such as Dec. 7, december 7, 12/7, but it does not recognize dates formatted in the following ways:  7
       December  or  7/12.  If you give the month as * with a date, such as, * 1, that day in any month will do.  On weekends, specifying tomorrow
       extends through Monday.

       When an argument is present, the command searches through a user's calendar file in his login directory and sends him any positive  results
       by Normally this is done daily under control of

       The  calendar  file  is	first  run  through  the  C  preprocessor, to include any other calendar files specified with the #include syntax.
       Included calendars are shared by all users, and are maintained and documented by the local administration.

Options
       -    Functions for every user who has a calendar file in his login directory.

Restrictions
       The extended idea of tomorrow does not account for holidays.

Files
       calendar
       /usr/lib/calendar to figure out today's and tomorrow's dates
       /etc/passwd
       /tmp/cal*
       /lib/cpp, egrep, sed, mail as subprocesses

See Also
       at(1), cron(8), mail(1)

																       calendar(1)
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