One morning my Ubuntu installation stopped . I’m now feel a lot more comfortable with linux distributions but at the time I was freaking out.
For this example, I will be installing the .deb file of Conky Manager by Tony George which is an awesome system load manager that displays real-time system load, CPU & RAM usage.
When you want to use PPA or any other .deb based application,
Install a .deb file from PPA or another random website
Make a folder in your Downloads or Documents folder called Debs.
Move the .deb file that you downloaded to that folder.
Right click on the .deb file, select “Open with GDebi Package Installer”.
Click “Install Package” (may need sudo password)
This will install all relevant dependencies too.
This method does not fill your /etc/apt/sources.list with a whole heap of random URLs.
To uninstall a .deb file at a later date
Go back to the folder called Debs that we created earlier.
Right click, “Open with GDebi Package Installer”.
Click “Remove Package”.
