Portscan Using Simple Bash Script

Simple bash script to scan open port of any machine in network without any tool like nmap or any other.

—————–Bash Script :——————-

Script:-

#!/bin/bash
hostname=192.168.0.1     #ip address of machine you want to scan
for port in {1..65535};do
2>/dev/null echo > /dev/tcp/$hostname/$port
if [ $? == 0 ]
 then
 {
 echo " $port is open"
 }
fi
done

Note :- change the host name to specific ip on which you want to scan.

Output :-

Screenshot from 2016-05-24 23-54-11

 

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