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Full Discussion: Parameters in crontab
Top Forums UNIX for Beginners Questions & Answers Parameters in crontab Post 302989155 by chakrapani on Monday 9th of January 2017 08:27:57 AM
Old 01-09-2017
Some of the things

Quote:
shell script which send an alert if a particular script scheduled in cron is not triggered.
  1. Did you check with cron logs?
    $ tail /var/log/cron
  2. What is the exit code of your script ? (pseudo code below)
    0 0 * * * (./script_waits_4hrs_then_fails.sh ) && ( mail -s "Success" ) || ( mail -s "Failed")
  3. May be modify the script to be more proactive and report to you before it decide to fail. ( Provide the script, we can suggest on certain "pro-activeness" for script. )
  4. If your don't want to modify the script then write another script to monitor the file and logs after the file downloaded is processed.
    Around the lines
    1. Check every X mins interval if file is available at "upstream" ? in four hours of time.
    2. If file appears then check if "script" writes any logs etc. If there is some activity, we have file and it started processed.
    3. Another way is to check for any process that the script is suppose to call example database call or other connections. Any binaries etc ..


Hope you get your answer and share your solution.

---------- Post updated at 08:27 AM ---------- Previous update was at 08:21 AM ----------

Also if your script does give out good output and if there are not many in cron jobs. Many be adding MAIL to will get you output of script. Make sure Mail server setup is good.
Code:
MAILTO=me@domain.com

Last edited by rbatte1; 01-09-2017 at 09:35 AM.. Reason: Converted textual numbered lists into formatted numbered lists
 

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LEARN ABOUT OSF1

uudemon.cleanu

uudemon(4)						     Kernel Interfaces Manual							uudemon(4)

NAME

       uudemon.admin,  uudemon.cleanu,	uudemon.hour,  uudemon.poll  -	Administrative shell scripts for polling remote systems, cleaning up spool
       directories, reporting status to the system administrator, and routine invocations of the uuxqt and uusched daemons

SYNOPSIS

       These shell scripts reside in the following directory:
	  /usr/lib/uucp

DESCRIPTION

       All the scripts can be run from the command line or can be run automatically by the cron daemon. To automatically run the  scripts,  remove
       the comment character (#) from the beginning of the relevant line in the /var/spool/cron/crontabs/uucp file.

       This  script  reports  status  to  the system administrator. It issues the uustat command to find out the status of uucp jobs. It mails the
       results to the uucp login ID. The script may be modified to send mail to any login ID such as the uucp administrative login ID  (uucpa)	or
       root.  This script cleans up the /var/spool/uucp and /var/spool/uucppublic directories by running the uucleanup command. The uucleanup com-
       mand is run with the following parameters: -C7, -D7, X2, -o2, -W1.  This script runs the uusched and uuxqt daemons in the background.  This
       script  polls  the  systems  listed  in	the  /usr/lib/uucp/Poll file.  The uudemon.poll script should be scheduled before the uudemon.hour
       script. This allows uudemon.poll to create any command files before cron runs the uudemon.hour script.

FILES

       Contains the uudemon.admin, uudemon.cleanu, uudemon.hour and uudemon.poll files.  Contains the uucp file.

RELATED INFORMATION

       Commands: cron(8), uucleanup(8), uusched(8), uuxqt(1)

       Files: /usr/lib/uucp delim off

																	uudemon(4)
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