Shell Programming and Scripting

#!/usr/bin/ksh

for server in `cat serverlist`
do
        old_ip=`cat serverlist | awk -F\; '{ print $2 }'`
        ser_name=`cat serverlist | awk 'BEGIN{ FS=";";RS = "\n\n" }{ print $1 }'`
        for j in "$ser_name\n"
        do
        curr_ip=`nslookup $j | grep Address | sed -n '2p' | cut -d: -f2`
        done
        for i in $old_ip
        do
        if [ $curr_ip == $old_ip ]
        then
                echo "IP is SAME"
        else
                echo "IP is DIFFERENT"
         fi
        done
done[/SIZE]

curr_ip=`nslookup $j | grep Address | sed -n '2p' | cut -d: -f2|sed 's/^[ \t]*//'`

if [ $curr_ip == $old_ip ]

if [[ "$curr_ip" == "$old_ip" ]]