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Check if not running then start (See related posts)

// This is to check if a process is running. Used with my bot

#!/bin/sh
# Check if bot is runing then exit otherwise restart
# put in crontab
# 0,10,20,30,40,50 * * * * /path/to/check.sh


MYPATH=/path/to

PID=0

if test -r $MYPATH/bot.pid; then
	PID=$(cat $MYPATH/bot.pid)
fi

if [ 0 -ne $PID ]; then
	running=`ps --pid $PID | grep $PID |wc -l` 

	if [ $running -eq 1 ]; then
		exit 1 
	fi
fi

cd $MYPATH
./check.sh & >/dev/null
to bash cron restart by hery on Fri Sep 19 15:21:58 +0000 2008

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