How to install Gummi on ubuntu
This post is trivial since Gummi has recently released an PPA (Personal Package Archive) for Ubuntu.
btw, there are only 3 commands needed to get Gummi up and running:
1- First, add the PPA to your repository:
$sudo add-apt-repository ppa:gummi/gummi

2- Then, update your repository to reflect the new changes:
$sudo apt-get update

3- Everything is now ready to install Gummi:
$sudo apt-get install gummi