Enable Restricted Extras in Ubuntu 13.04

Hello Everyone , Recently I Switched to Open Source Linux World and Closed all the windows that I used Till Now , But Its not that Easy to Use Linux as compared with Windows OS because it consists of Typical Commands.

I had installed Ubuntu 13.04 on my Dell Inspiron 3520 Laptop , but the Problem after installing is that I am not able to play Sound Because of Missing Plugins,

after Installing all the Plugins that are Required to Play Music Files, the problem Remains Unsolved, I called Dell Customer Care for the Solution But they aren't able to solve my problem they said that " Sorry Sir, We are unable to solve your Problem on Ubuntu Sound because our Engineers aren't trained With Ubuntu".

But Later on after Searching Whole Day for the Solution I found a Command that you can install Ubuntu Restricted Extras which are packages that are left of by default by Canonical because of legal and other reasons. Installing these extra packages will allow you to play MP3 and DVD files, enable Microsoft Core fonts, Flash Player plugin, and many more.

Below is the command to install the extra packages.

sudo apt-get install ubuntu-restricted-extras