#!/bin/sh

PROCESSLINE="`ps | grep ./main | grep -v grep`"

# Check if the string PROCESSLINE is empty, by using the -n test operator
if [ -n "$PROCESSLINE" ]; 
then
        echo ==> Process exists, so kill it, dude!
        PROCESSID="`expr substr \"$PROCESSLINE\" 1 5`"
        kill -9 $PROCESSID
        echo Give 1 seconds time to completely stop the running application
        sleep 1
else
        echo No such process currently running...
fi