--- abhishek jain <[EMAIL PROTECTED]> wrote:
> Dear Friends,
> I again have a question(looks like i have a lot of questions:) )
> I need a shell script run as a cron to do the following task,
> 1)Do 'ps -ef' or with other arguments of 'ps ' and see whether a
> particular process is executing. Pl. tell me what are the best parameters
> of 'ps' to search for a particular process
> 2) If yes do nothing.
> 3)If no runs that same process.
> 4)Logs all messages to a file
> 5)Logs all error messages to another file.
> I am a novice at shell script.
> Pl. help me give some inputs , regarding the best parameters /arguments of
> 'ps' and whas the method of logging error and normal messages.
try the following code. Hope it helps. i checked for httpd
#!/bin/bash
. /etc/rc.d/init.d/functions
PROCESS=httpd
log()
{
now=`date`
echo -e "$now$*" | tee >> script.log
}
status $PROCESS
STATE=$?
if [ $STATE == 0 ]
then
log " Success: $PROCESS is running on the server"
else
log " Error: $PROCESS not running. Restarting $PROCESS"
/etc/init.d/httpd start
fi
exit 0
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