Write a script to find all the IP addresses assigned in CS department that have globally recognized domain names. (Consider the same assumption of 23-bit prefix). Refer to the following example and modify it.

#!/bin/bash

for i in {0..15..1}

do

IP="18.62.1.$i"

result=$(dig -x $IP +short)

if [ $result ]

then

echo "$IP:$result"

fi

done