Ubuntu is a desktop environment for computers running Linux. It presents a graphical user interface on top of the Linux operating system, which is similar to Unix. Users of Ubuntu can get down to the command line and execute commands through an Ubuntu “Terminal.” This is a window that shows the command line. Owners of an Ubuntu system can update their Flash player by downloading it through a browser in Ubuntu. However, they can also install, delete or replace the Flash Player through Linux commands issued in an Ubuntu Terminal window.
Ensure that your computer is connected to the Internet. The Flash Player’s latest version will be downloaded onto the computer during the update process.
Press the “Control,” “Alt” and “T” keys on your keyboard at the same time. This will open a Terminal window. You will see the command prompt in the window.
Remove any existing versions of the Flash Player by issuing the command: sudo apt-get remove flashplugin-* --purge Press return to execute the command.
Install the latest version of the software with the command: sudo apt-get install flashplugin-nonfree Press return again.
Enter your administrator password when prompted. The installation will take place without any further input.