Intro

Intro

Install and maintain software with distro package managers used on servers. Ubuntu/Debian: apt/dpkg; Fedora/RHEL: dnf/rpm (and legacy yum); optional Ubuntu snap for selected server tools. Desktop app stores (Flatpak, GUI software centers) are out of scope.

Commands in this part

Command	Role
apt	apt is the friendly package manager front-end on Debian and Ubuntu.
dpkg	The dpkg (Debian Package) command is a low-level package manager for Debian-based systems.
dnf	dnf (Dandified YUM) is the primary high-level package manager on Fedora, RHEL 8+, CentOS Stream, Rocky, AlmaLinux,…
rpm	The rpm (RPM Package Manager) command is a low-level package manager for RPM-based Linux distributions.
yum	yum (Yellowdog Updater Modified) is the classic RPM package manager front-end for older RHEL/CentOS/Scientific Linux…
snap	snap installs Snap packages from the Snap Store.

Suggested starting points

1. Debian/Ubuntu day-to-day: apt (low-level: dpkg).
2. Fedora/RHEL: dnf (low-level: rpm; legacy: yum).
3. Optional on Ubuntu: snap only when a server tool requires snapd.

Related parts

• Services and runtime — restart units after library upgrades
• Security — trust and third-party repos
• Files and paths — where binaries land (which, dpkg -L)

Continue with the individual command pages in this part.