Installing Metasploit Framework on Ububtu

If you have a 32 bit Ubuntu then download

http://downloads.metasploit.com/data/releases/metasploit-latest-linux-installer.run

If you have a 64 bit Ubuntu then download

http://downloads.metasploit.com/data/releases/metasploit-latest-linux-x64-installer.run

then provide it permission for executing
chmod +x ./metasploit-latest-linux-installer.run

then install it by typing
./metasploit-latest-linux-installer.run

Then installation will begin, then press the option correclty, then it will installed correctly.
Thenn restart the system,
Now your metasploit framework is ready.