If you love to use the Opera internet browser instead of Firefox, this article could be very interesting for you. To install the Opera 11 internet browser on an Ubuntu 11.10 Oneiric Ocelot system, you will need to use a simple set of commands to enter in a Terminal window.
Steps
Step 1. To add Opera's public key, first you need to access a Terminal window
To do this, press the key combination Ctrl + Alt + T on your keyboard. To insert the following command into the Terminal window, type it fully or use the copy / paste method: sudo sh -c 'wget -O - https://deb.opera.com/archive.key | apt-key add - 'then hit the Enter key.
Step 2. When prompted to enter your password, type it and press the Enter key again
Step 3. To add the Opera repository, type or copy / paste the following command:
sudo gedit /etc/apt/sources.list.d/opera.list, then press the Enter key.
Step 4. When the Gedit window appears, copy the following line of code into the Opera.list file:
deb https://deb.opera.com/opera/ stable non-free, then save the changes and close Gedit.
Step 5. Inside the Terminal window, type or copy / paste the following command to update your system:
sudo apt-get update, then hit Enter.
Step 6. To install Opera, type or copy / paste the following command:
sudo apt-get install opera, then hit the Enter key.
Step 7. When asked to confirm your willingness to continue with the installation process, press the 'Y' key and press Enter
Step 8. After the installation of Opera is complete, you can close the Terminal window
Step 9. To start the Opera browser, press the Windows key (it is the key next to the left alt="Image" key) to open the Dashboard, then type the keyword 'op' in the search field and select with the mouse, the Opera icon appeared in the list of results
Step 10. If you wish, read the content of the terms of the license agreement for the Opera browser, then press the 'Agree' button
Step 11. Finished
Happy surfing with your new Opera 11 internet browser.
