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Shell Programming and Scripting
Monitor via crontab
Post 302264121 by rvenkam on Wednesday 3rd of December 2008 07:03:51 AM
12-03-2008
thanks for the reply.
i have added a cron entry to monitor the appln in the crontab file like this
0 0 * * * <path where appln file is present>
The appln will strt at 12 midnight everyday and has to stop by 10 PM the same day.
now i added another cron job for running a acript which wil monitor the appl till 10 like this
and which will be started some ten mins before 10 PM everyday
50 22 * * * <path of the script>
TIME_NOW=date '+%H:%M:%S'
if [$TIME_NOW == "22:00:00"] ; then
ps -ef |grep "<appl name> "
kill -9 | awk '$2'
exit 1
fi
But the problem here is allthe cron jobs are shown rnning as /usr/sbin/cron if i grep for cron.
So how do i kill my cron job?
I tried invoking a child job along with the first cron, get its parent id (which wil be cron job id) and kill it.
But that seems to be a round about way of doin it
help me with some soln
regards
i have added a cron entry to monitor the appln in the crontab file like this
0 0 * * * <path where appln file is present>
The appln will strt at 12 midnight everyday and has to stop by 10 PM the same day.
now i added another cron job for running a acript which wil monitor the appl till 10 like this
and which will be started some ten mins before 10 PM everyday
50 22 * * * <path of the script>
TIME_NOW=date '+%H:%M:%S'
if [$TIME_NOW == "22:00:00"] ; then
ps -ef |grep "<appl name> "
kill -9 | awk '$2'
exit 1
fi
But the problem here is allthe cron jobs are shown rnning as /usr/sbin/cron if i grep for cron.
So how do i kill my cron job?
I tried invoking a child job along with the first cron, get its parent id (which wil be cron job id) and kill it.
But that seems to be a round about way of doin it
help me with some soln
regards
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LEARN ABOUT REDHAT
crontab
CRONTAB(1) General Commands Manual CRONTAB(1) NAME
crontab - maintain crontab files for individual users (V3) SYNOPSIS
crontab [ -u user ] file crontab [ -u user ] { -l | -r | -e } DESCRIPTION
Crontab is the program used to install, deinstall or list the tables used to drive the cron(8) daemon in Vixie Cron. Each user can have their own crontab, and though these are files in /var, they are not intended to be edited directly. If the allow file exists, then you must be listed therein in order to be allowed to use this command. If the allow file does not exist but the deny file does exist, then you must not be listed in the deny file in order to use this command. If neither of these files exists, then depending on site-dependent configuration parameters, only the super user will be allowed to use this command, or all users will be able to use this command. If the -u option is given, it specifies the name of the user whose crontab is to be tweaked. If this option is not given, crontab examines "your" crontab, i.e., the crontab of the person executing the command. Note that su(8) can confuse crontab and that if you are running inside of su(8) you should always use the -u option for safety's sake. The first form of this command is used to install a new crontab from some named file or standard input if the pseudo-filename ``-'' is given. The -l option causes the current crontab to be displayed on standard output. The -r option causes the current crontab to be removed. The -e option is used to edit the current crontab using the editor specified by the VISUAL or EDITOR environment variables. After you exit from the editor, the modified crontab will be installed automatically. SEE ALSO
crontab(5), cron(8) FILES
/etc/cron.allow /etc/cron.deny STANDARDS
The crontab command conforms to IEEE Std1003.2-1992 (``POSIX''). This new command syntax differs from previous versions of Vixie Cron, as well as from the classic SVR3 syntax. DIAGNOSTICS
A fairly informative usage message appears if you run it with a bad command line. AUTHOR
Paul Vixie <paul@vix.com> 4th Berkeley Distribution 29 December 1993 CRONTAB(1)