Windows 7 has provided many controls to users to customise the appearance of the OS.  The only sad point is about the logon screen with which the OS welcomes its  users.

Though there is nothing bad with the picture, but we all get tired seeing the same picture everytime.  It is indeed true that a majority of us might have already thought about changing the picture.

This post is dedicated to all Ubuntu lovers. 

This is how youtube videos can be downloaded easily from the ubuntu  terminal. 

First, you will have to install a software called Youtube-dl. Installation is simple. Paste the following line to the terminal. 

sudo apt-get install youtube-dl