Getting IP addresses for remote nodes

#!/bin/bash 
# author: Edward A Webb (http://edwardawebb.com
# license: Just use it! its like 10 lines of shell script...
 
# add your actual nodes here.....
nodes=( gonzo fenway einstein yogurt toxic babmbi rambo donna INXS etc... )
 
ips=( ) # placeholder for results
 
printf "\t Determing IP addresses for provided nodes \n ignore these lines...\n"
for (( i = 0 ; i < ${#nodes[@]} ; i++ ))
do
	str=$(nslookup ${nodes[$i]} | tail --lines=2 | head --lines=1)
	ips[$i]=$(echo $str | cut -f 2 -d " ")
 
done
 
printf "\t COMPLETE\n Here are the results you care about..\n"
 
for (( i = 0 ; i < ${#ips[@]} ; i++ ))
do
	echo address for ${nodes[$i]} is ${ips[$i]} | tee -a ip_results.txt
done