#!/bin/bash


if [ -z "$1" ]
then
	echo "Usage:"
	echo "      pingcheck 190 254 192.168.1"
	echo "          190 is the starting ip address"
	echo "          254 is the last ip address"
	echo "          192.168.1 is the subnet"
	echo "Example:"
	echo "      pingcheck 190 254 192.168.1 "
else
	for I in `jot -s $1 -e $2`
	do
		NAME=`nslookup $3.$I | grep = |cut -d = -f 2`
		# These two lines are the same, just different ways to clean up the output.
		#ping -c 1 -w 1 $3.$I 2>/dev/null 1>/dev/null
		ping -c 1 -w 1 $3.$I >/dev/null  2>&1
		if [ $? -eq 0 ]
		then
			echo $3.$I exists $NAME;
		else
			echo $3.$I does not exist $NAME;
	        fi
	done
fi