config() { 
  NEW="$1" 
  OLD="$(dirname $NEW)/$(basename $NEW .new)" 
  if [ ! -r $OLD ]; then 
    mv $NEW $OLD 
  elif [ "$(cat $OLD | md5sum)" = "$(cat $NEW | md5sum)" ]; then 
    rm $NEW 
  fi 
}

config etc/bashmount.conf.new