One of the amazing thing about the Linux world that other operating systems lack is the software and package management. Everything is taken care of for you. The updates, the dependencies, the missing files, you need not think about anything everything is done for you. That being said, there are things that are not completely obvious to starters. Here is a quick rundown of commands, files and tools that should get you up to speed with package management.

Most Linux distributions that are aimed at average users have a package management tool. RedHat and Fedora have RPM, Debian/Ubuntu/Mint has APT, Arch has Pacman and so on. Each of them essentially do the same thing — keep track of what is installed, lets you install and remove software as well as prompt you to update the installed software whenever necessary. Choosing one to have a detailed look at, it would be APT package management in Ubuntu. So here we go:

http://www.makeuseof.com/tag/repositories-package-management-ubuntu/

A Guy