If you’ve ever used Debian or a Debian based distribution like Ubuntu or Linux Mint, then chances are that you’ve used the APT package system to install or remove software. Even if you’ve never dabbled on the command line, the underlying system that powers your package manager GUI is the APT system.

Today, we are going to take a look at some familiar commands, and dive into some less or more frequently used APT commands, and shed some light on this brilliantly designed system.

Full article here:
Understanding APT, APT-Cache and Their Frequently Used Commands (Tecmint)