Cara Instalasi:
wget -O - http://deb.opera.com/archive.key | sudo apt-key add -sudo sh -c 'echo "deb http://deb.opera.com/opera/ stable non-free" > /etc/apt/sources.list.d/opera.list'
sudo apt-get update
sudo apt-get install opera
Sumber: http://www.upubuntu.com/2012/05/how-to-install-opera-1164-under-ubuntu.html
