Linux, known for its robustness and flexibility, provides several package managers that aid in software management. These package managers help us to install, update, or remove software in a systematic way. Each Linux distribution may come with its own package management system. Examples include apt in Debian-based systems, dnf in Fedora, zypper in OpenSUSE, and pacman in Arch Linux.
One common task you may often need is listing installed packages in your system. This task can help in various scenarios like auditing installed software, scripting or automating deployment of software on new machines.
Below is the command for listing installed packages in an apt package manager:
sudo apt list --installed
For dnf package manager, you would use:
dnf list installed
Remember, different distributions will have their own syntax for this command.