Creating a daemon to run in background Post: 302496265

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Top Forums Shell Programming and Scripting Creating a daemon to run in background Post 302496265 by ukndoit on Sunday 13th of February 2011 06:51:28 AM

02-13-2011

Registered User

Creating a daemon to run in background

I am trying to create a service to always run and monitor a script that has a tendency to hang, we could not find what is causing it to hang so are in the process of completely reprogramming just about everything, however, that will take upto 6 months.

So I need to create this to monitor the script to make sure it does not run wild which it does once in a while, sometimes only once per month, once per week or sometimes once per day or hour.

So here is what I am trying to do:

Get this code:

Code:

ps auxww | egrep [m]ember.cgi | awk '{print $2}' | while read PID; do kill -9 $PID; done;

to always be running in the background. I need the script to be allowed to run for at least 2 seconds before it would kill it, but i have no idea how to do that... Here is what I have so far and it does not work at all...

Code:

#!/bin/sh
#Kill_daemon.sh

i=0

while [$i -le 12]
do
ps auxww | egrep [m]ember.cgi | awk '{print $2}' | while read PID; do kill -9 $PID; done;
i++
sleep 5

done

however, when I try to execute it, I get this error:
: command not foundh: line 3:
: command not foundh: line 5:
Kill_daemon.sh: line 15: syntax error: unexpected end of file

I would appreciate any assistance you can provide, even if you can just point me in the correct direction. I am a novice in shell programming, I do not know much at all about it. I am a perl programmer and wrote a perl script to do it, however, when I keep it running, it holds the memory and cpu usage while sleeping, so the server load does not go down below .40 which if I don't have any of the scripts running wild and no perl script running to monitor it the server load gets down to like .10

Thank you much,
Richard

ukndoit

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LEARN ABOUT OSF1

uudemon

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)