Simple Bash Scripting

Harvesting

Step 1: Download the default page of a website

wget icq.com

Step2: Find All FQDN and PQDN in index.html

cat index.html | grep "href=" |cut -d'/' -f3|grep icq.com|sort-u|cut -d'"' -f1 >domain.txt

Step 3: Find Ip address of all domain names which we got from the last step.To do so we will make a bash script.

//findip.sh

#!/bin/bash

for hostname in $(cat domain.txt); do

host $hostname |cut -d' ' -f4|tr -d 'a-z' &

done

Step 4: Now find whether these Ip address are alive or not.So again we will make a script that will do ping sweep.

./findip.sh >Ipaddress.txt

//FindAlive.sh

#!/bin/bash

for ipaddress in $(cat Ipaddress.txt);do

echo $ipaddress   $(ping $ipaddress -c 1|grep "received"|cut -d',' -f2) &

done

Now lets have look to the results:->