A Linux package refers to a compressed file archive containing all of the files that come with a specific application. The files are usually stored in the package according to their relative installation paths on your system. Most packages also contain installation instructions for the OS, as well as a list of any other packages that are dependencies (prerequisites required for installation). You may also be interested in the following articles: How to install Mattermost on Ubuntu and Debian, and how to install and configure Jitsi on Ubuntu, how to disable or enable automatic login from the sign-in screen in Windows, how to enable or disable automatic login on macOS, how to prevent MacBook from automatically Logging out.
Clean packages laying around in Linux
Common types of Linux packages include .deb, .rpm, and .tgz. Since Linux packages do not usually contain the dependencies necessary to install them, many Linux distributions use package managers that automatically read dependencies files and download the packages needed before proceeding with the installation. Some examples of package managers are APT, YUM, and Pacman.
These commands might be different from the commands used in your Linux distribution. For Ubuntu: Use the commands below.
sudo apt-get autoremove sudo apt-get clean sudo apt-get autoclean
These commands are needed to remove packages (dependencies) laying on the system after a particular package has been uninstalled.
I hope you found this blog post on how to clean packages laying around in Linux helpful. Please let me know in the comment session if you have any questions.