ClipGrab Quick Start for Ubuntu 15.04 Vivid Linux
Hi! The Tutorial shows you Step-by-Step How to Install/Upgrade and Getting-Started with the Latest ClipGrab Program Release on Ubuntu 15.04 Vivid Vervet GNU/Linux Desktop.
The Latest ClipGrab installation is Ported on Ubuntu-based OS by the Work of the GetDeb Project Developers.
ClipGrab is a free downloader and converter for YouTube, Vimeo, Metacafe, Dailymotion and many other online video sites. It converts downloaded videos to MPEG4, MP3 or other formats in just one easy step.

Open a Shell Terminal emulator session
Ctrl+Alt+t on Desktop
(Press “Enter” to Execute Commands)In case first see: Terminal QuickStart Guide.
How to Add GetDeb Repos for Ubuntu
Installing GetDeb Repos on Ubuntu.
cd ~/Downloads
sudo dpkg -i getdeb-repo*.deb
If Got “User is Not in Sudoers file” then see: How to Enable sudo
Refreshing Ubuntu Repositories.
sudo apt-get update
Click on Link to Install ClipGrab for Ubuntu
Confirm to Open with Ubuntu Software Center on Browser
Click on Install to Get the ClipGrab Installation