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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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DAILY(5)						      BSD File Formats Manual							  DAILY(5)

NAME
daily, daily.conf -- daily maintenance DESCRIPTION
The /etc/daily script is run, by default, every night on a NetBSD system. The /etc/daily.conf file specifies which of the standard daily services are performed. The variables described below can be set to ``YES'' or ``NO'' in the /etc/daily.conf file. Most default to ``YES'', but not all. Check the /etc/defaults/daily.conf file if you are in doubt. (Note that you should never edit /etc/defaults/daily.conf directly, as it is often replaced during system upgrades.) find_core This runs find(1) over the entire local filesystem, looking for core files. run_msgs This runs msgs(1) with the -c argument. expire_news This runs the /etc/expire.news script. purge_accounting This ages accounting files in /var/account. run_calendar This runs calendar(1) with the -a argument. check_disks This uses the df(1) and dump(8) to give disk status, and also reports failed raid(4) components. show_remote_fs In check_disks, show remote file systems, which are not reported on by default. check_mailq This runs mailq(1). check_network This runs netstat(1) with the -i argument, and also checks the rwhod(8) database, and runs ruptime(1) if there are hosts in /var/rwho. full_netstat By default, check_network outputs a summarized version of the netstat(1) report. If a full version of the output run with the -inv options is desired, set this variable. run_fsck This runs fsck(8) with the -n option. run_rdist This runs rdist(1) with /etc/Distfile. run_security This runs the /etc/security script looking for possible security problems with the system. run_skeyaudit Runs the skeyaudit(1) program to check the S/Key database and informs users of S/Keys that are about to expire. run_makemandb If the /etc/man.conf file exists, runs the makemandb(8) utility to update the man.db database for use by apropos(1). fetch_pkg_vulnerabilities Refreshes the local database of package vulnerabilities. See the settings in security.conf(5) for details on the actual package checks. The variables described below can be set to modify the tests: find_core_ignore_fstypes Lists filesystem types to ignore during the find_core phase. Prefixing the type with a '!' inverts the match. For example, 'procfs !local' will ignore 'procfs' type filesystems and filesystems that are not 'local'. find_core_ignore_paths Lists paths to ignore during the find_core phase. For example, '/export' will not descend into any directories under the '/export' hierarchy. This, on a file server, allows to skip user data while still scanning system files. run_fsck_flags Extra options to be passed to fsck(8) if run_fsck is enabled. send_empty_security If set, the report generated by the run_security phase will always be sent, even if it is empty. pkgdb_dir DEPRECATED. Please set PKGDB_DIR in pkg_install.conf(5) instead. If defined, points to the location of the packages database. Defaults to /var/db/pkg. FILES
/etc/daily daily maintenance script /etc/daily.conf daily maintenance configuration /etc/defaults/daily.conf default settings, overridden by /etc/daily.conf /etc/daily.local local site additions to /etc/daily SEE ALSO
monthly(5), security.conf(5), weekly(5) HISTORY
The /etc/daily.conf file appeared in NetBSD 1.3. BSD
July 30, 2012 BSD
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