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Full Discussion: Writing a script to run weekly/monthly - check for weekday or day-of-the-month
Top Forums Shell Programming and Scripting Writing a script to run weekly/monthly - check for weekday or day-of-the-month Post 302623665 by newbie_01 on Saturday 14th of April 2012 09:23:26 AM
Old 04-14-2012
Writing a script to run weekly/monthly - check for weekday or day-of-the-month
Hi all,

I currently have a UNIX file maintenance script that runs daily as a cron job.

Now I want to change the script and create functions/sub inside it that runs on a weekly or monthly basis.

To run all the scripts' daily maintenance, I want to schedule it in cron as simply maint.sh when it runs all of its daily maintenance. To run its weekly maintenance functions/subs, I schedule it as maint.sh weekly=6 where 6 is saturday. To run its monthly task, I schedule it as maint.sh monthly=15, i.e. every 15th of the month. Not sure whether I can do monthly=eom where eom is to run functions/sub for every end of the month.

At the moment, am playing around with the weekly functions/sub and what I've done so far is to do something like below

Code:
 
day_of_the_week=`date '+%A' | tr "[:upper:]" "[:lower:]"`
day_of_the_week_n=""
date_of_the_month=`date '+%d'`
 
case "${day_of_the_week}" in
   "monday" )
      day_of_the_week_n=1 ;;
   "tuesday" )
      day_of_the_week_n=2 ;;
   "wednesday" )
      day_of_the_week_n=3 ;;
   "thursday" )
      day_of_the_week_n=4 ;;
   "friday" )
      day_of_the_week_n=5 ;;
   "saturday" )
      day_of_the_week_n=6 ;;
   "sunday" )
      day_of_the_week_n=0 ;;
esac

Then I compare the day_of_week_n variable with the value of the command below:

Code:
 
echo ${1} | grep "weekly" | cut -f2 -d=

And then I use if-then-else to compare if current day of the week matches, then it will run the weekly functions/sub. So weekly=6 will run saturday's functons/sub, weekly=1 will run monday's functions/sub and so on.

Am wanting to know if there is a better way of parsing for the day of the week besides what am doing at the moment which is using case and then doing if-then-else to check for the day of the week.

For the monthly functions/sub, I uses the value of the one below and uses if-then-else again to compare it when monthly=15.

Code:
 
date_of_the_month=`date '+%d'`

Perhaps anyone can advice if there is any way I can check for end of month?

Any advice much appreciated. Thanks in advance.
 

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LEARN ABOUT DEBIAN

lr_cron

LR_CRON.IN(1)						  LogReport's Lire Documentation					     LR_CRON.IN(1)

NAME

       lr_cron - run the perodical jobs configured in a DlfStore.

SYNOPSIS

       lr_cron period store

DESCRIPTION

       lr_cron is designed to be called in a crontab(5) entry.	period should be "hourly", "daily", "weekly", "monthly" or "yearly".  store should
       be the full path name of the DLF Store.

       lire(1) should be used to configure periodical jobs in the store.

       To run jobs as scheduled by lire(1), you will need to setup cron jobs. For each schedule you use, you should configure a cron job to be
       executed according to that period.

       Here is a crontab(5) entry that will make sure that all possible schedules are supported in the /home/flacoste/myStore DLF store:

	05  *  *  *  * lr_run lr_cron hourly  /home/flacoste/myStore
	15 01  *  *  * lr_run lr_cron daily   /home/flacoste/myStore
	15 02  *  * 02 lr_run lr_cron weekly  /home/flacoste/myStore
	15 03 01  *  * lr_run lr_cron monthly /home/flacoste/myStore
	15 04 01  01 * lr_run lr_cron yearly  /home/flacoste/myStore

       .

SEE ALSO

       lire(1)

AUTHOR

       Francis J. Lacoste <flacoste@logreport.org>

VERSION

       $Id: lr_cron.in,v 1.37 2006/07/23 13:16:32 vanbaal Exp $

COPYRIGHT

       Copyright (C) 2004 Stichting LogReport Foundation LogReport@LogReport.org

       This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by
       the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

       This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.

       You should have received a copy of the GNU General Public License along with this program (see COPYING); if not, check with
       http://www.gnu.org/copyleft/gpl.html.

Lire 2.1.1							    2006-07-23							     LR_CRON.IN(1)
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