Linux package managers: what tasks they do

Linux package managers are software tools that allow you to install, uninstall, and manage software packages in the Linux operating system.

Types of package managers

There are several package managers for Linux, each with its own features and advantages:

1. apt-get / aptitude (for Debian, Ubuntu and their derivatives) is one of the most common package managers in Linux. It uses the .deb format for packages and makes it easy to install, update, and uninstall packages using the command line.
2. yum / dnf (for Red Hat, CentOS and Fedora) - These package managers are also popular in Linux. They use the .rpm format for packages and provide automatic dependency installation.
3. pacman (for Arch Linux) is a package manager that uses the .pkg.tar.xz format for packages and allows easy management of dependencies and updates.
4. Portage (for Gentoo Linux) is a package manager that uses a port management system, allowing users to compile software on their computer and customize it to their needs.
5. ypper (for openSUSE) is a package manager that uses the .rpm format for packages and allows you to manage updates and installations of packages from various sources.

Each of these package managers has its own advantages and disadvantages, so the choice depends on the specific needs and preferences of the user.

What package managers can do

Linux package managers are able to perform the following functions:

1. Install software packages using the command line or graphical interface. During installation, the package manager can automatically install dependencies required for the package to work.

2. Can update installed packages to the latest version. This can be done using the command line or GUI.

3. Are able to uninstall software packages that are no longer needed by the user. When uninstalling, the package manager can also remove dependencies associated with that package.

4. Allow you to search for software packages in their repositories. This can be done via command line or GUI.

5. Automatically manage dependencies when installing and upgrading packages. They can also allow the user to manage dependencies manually.

6. Allow you to add, remove, and customize repositories that are used to install and update packages.

7. Some package managers allow the user to manage the configuration files associated with installed packages.

Each package manager has its own unique features, but in general they provide a convenient and efficient way to manage software in Linux.