Script to check and restart a process

#!/bin/bash
# -------------------------------------------------------------------------
# Copyright (c) 2003 nixCraft project <http://cyberciti.biz/fb/>
# This script is licensed under GNU GPL version 2.0 or above
# -------------------------------------------------------------------------
# This script is part of nixCraft shell script http://en.wikipedia.org/wiki/Shell_script collection (NSSC)
# Visit http://bash.cyberciti.biz/ for more information.
# Copyright (c) 2010 CyberOrg Info. Modification to watch any process/service 
# -------------------------------------------------------------------------
RESTART="/etc/init.d/sshd restart"
PGREP="/usr/bin/pgrep"
processtowatch="sshd"
x=1
while [ $x = 1 ];
do 
    # find pid
    $PGREP ${processtowatch}
    if [ $? -ne 0 ]
    then
        echo "`date` : $processtowatch went down, restarting" >> /var/log/restart.log
        $RESTART
    fi
    sleep 30
done