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What is Package Manager?

A tool that automates the process of installing, updating, configuring, and removing software packages.

Package managers handle software dependencies, versioning, and installation from repositories. Popular examples include APT (Debian/Ubuntu), DNF/YUM (Fedora/RHEL), Pacman (Arch Linux), and Zypper (openSUSE).

They maintain a database of installed packages and their dependencies, making it easy to keep systems updated and resolve conflicts.

Related Terms

Procfs (/proc)
A virtual filesystem in Linux that provides an interface to kernel data structures, exposing process and system information as files.
Ulimit
A command that sets or displays resource limits for user processes, such as maximum open files or memory usage.
Netstat
A command-line tool that displays network connections, routing tables, and interface statistics on a system.
Disk Quota
A system for limiting the amount of disk space or number of files that individual users or groups can consume on a filesystem.
Network Namespace
A Linux kernel feature that provides isolated network stacks with independent interfaces, routing tables, and firewall rules.
Root User
The superuser account in Unix/Linux systems with unrestricted access to all commands and files.
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