Traditionally, Ubuntu has used the Deb package format. The Deb package format comes from Debian, which Ubuntu is based on. This is similar to other Linux package formats, like the RPM packages that ...

Many, if not most, of the newest and updated Linux applications out there are crafting Ubuntu/Debian-ready .deb packages that require just a double-click to install ...

No, those packages are just used to save download times with apt-get. It's completely harmless to remove them. If you do, it'll just be downloaded again the next time it's needed.

A file extension, or file name extension, is the letters immediately shown after the last period in a file name. For example, the file extension.txt has an extension of .txt. This extension allows the ...