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Top Forums Shell Programming and Scripting Need help in running script on last day of month Post 302569357 by aks_1902 on Monday 31st of October 2011 04:08:49 AM
Old 10-31-2011
Hello Amit,

Can you please help me clearing one doubt....

If i run the below script...
Code:
#!/bin/bash

TODAY=`/bin/date +%d`
TOMORROW=`/bin/date +%d -d "1 day"`

# See if tomorrow's day is less than today's
if [ $TOMORROW -lt $TODAY ]; then
        exit 0
fi

exit 1

it will run for every day which less than tomorrow, like it will on 29 coz 29 is less than 30, it will run on 30 coz 30 is less than 31st....what happen if date is 28th Feb...!!!

and my requirement is it should run on last day of every month....I can't do scheduling in crontab, due to some constrain......please help me in achieving it through script.....

Thanks in advance

Moderator's Comments:
Mod Comment Use code tag! See PM.

Last edited by zaxxon; 10-31-2011 at 06:11 AM.. Reason: code tags, see PM
 

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CRON(8) 						      System Manager's Manual							   CRON(8)

NAME
cron - clock daemon SYNOPSIS
/usr/sbin/cron DESCRIPTION
Cron executes commands at specified dates and times according to the instructions in the files /etc/crontab and /etc/crontab.local. None, either one, or both of these files may be present. Since cron never exits, it should only be executed once. This is best done by running cron from the initialization process through the file /etc/rc; see init(8). The crontab files consist of lines of seven fields each. The fields are separated by spaces or tabs. The first five are integer patterns to specify: o minute (0-59) o hour (0-23) o day of the month (1-31) o month of the year (1-12) o day of the week (1-7 with 1 = Monday) Each of these patterns may contain: o a number in the range above o two numbers separated by a minus meaning a range inclusive o a list of numbers separated by commas meaning any of the numbers o an asterisk meaning all legal values The sixth field is a user name: the command will be run with that user's uid and permissions. The seventh field consists of all the text on a line following the sixth field, including spaces and tabs; this text is treated as a command which is executed by the Shell at the specified times. A percent character (``%'') in this field is translated to a new-line character. Both crontab files are checked by cron every minute, on the minute. FILES
/etc/crontab /etc/crontab.local 7th Edition October 23, 1996 CRON(8)
All times are GMT -4. The time now is 06:53 AM.
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