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Full Discussion: infinite loop to check process is running
Top Forums Shell Programming and Scripting infinite loop to check process is running Post 302247780 by yabai on Thursday 16th of October 2008 10:48:33 AM
Old 10-16-2008
infinite loop to check process is running
Hi,

I got a simple script working to check if a process is running and then email if it is not running anymore. My scenario is that I need to make sure the process is always running so instead of running the below script via cron I think it is better to a have a looping script to check continually. I'm unsure on this and don't want to bodge it up and create a burden to the system.

I did search but couldn't get a match that helped me. Can anyone point me at a sample I can edit please?

Cheers


Code:
#!/bin/csh
# This script checks to see if process e_1 is up, if down it sends an email. If up it exits.
#
set DATE=`date +%d%m%y`
set TIME=`date +%H%M`
set RECIPIENT="email@"
set DPID = `ps -ef | grep -v grep | grep e_1`
if ("$DPID" == "") then
  echo "The e_1 process went down at $TIME on $DATE" | mail -s "The u_1 process went down" $RECIPIENT
else
  echo "e_1 is up"
endif
exit

 

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LEARN ABOUT DEBIAN

rt-email-dashboards-4

rt-email-dashboards(8)					     Request Tracker Reference					    rt-email-dashboards(8)

NAME

       rt-email-dashboards - Send email dashboards

SYNOPSIS

	   rt-email-dashboards [options]

DESCRIPTION

       This tool will send users email based on how they have subscribed to dashboards. A dashboard is a set of saved searches, the subscription
       controls how often that dashboard is sent and how it's displayed.

       Each subscription has an hour, and possibly day of week or day of month. These are taken to be in the user's timezone if available, UTC
       otherwise.

SETUP

       You'll need to have cron run this script every hour. Here's an example crontab entry to do this.

	   0 * * * * /usr/bin/perl /opt/rt4/local/sbin/rt-email-dashboards

       This will run the script every hour on the hour. This may need some further tweaking to be run as the correct user.

OPTIONS

       This tool supports a few options. Most are for debugging.

       -h
       --help  Display this documentation

       --dryrun
	       Figure out which dashboards would be sent, but don't actually generate or email any of them

       --time SECONDS
	       Instead of using the current time to figure out which dashboards should be sent, use SECONDS (usually since midnight Jan 1st, 1970,
	       so 1192216018 would be Oct 12 19:06:58 GMT 2007).

       --epoch SECONDS
	       Back-compat for --time SECONDS.

       --all   Ignore subscription frequency when considering each dashboard (should only be used with --dryrun for testing and debugging)

perl v5.14.2							    2013-05-22						    rt-email-dashboards(8)
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