Bash script to stop and disable list of services in Linux

# Defining List of unwanted services
SERVICES="rhnsd sendmail cups netfs autofs nfslock mdmonitor isdn cpuspeed rpcidmapd rpcgssd iptables xfs pcmcia smartd"

# Finding each service status
for service in $SERVICES; do
  if [ -f /etc/init.d/$service ]; then
     # Turning off the service
      chkconfig $service off
     if_running=`service $service status | egrep -i running`
      # Stopping the service if it is running
      [ ! -z "$if_running" ] && service $service stop
  fi
done