Linux Package Management (APT, DNF & Pacman)

Admin

October 1, 2026

5 min read

Modern Linux distributions manage software through centralized package repositories. Choose your distribution tab inside each step to run the appropriate command.

Step 1: Refresh Repositories and Review System Updates

Refresh Repositories and Review System Updates

Repository

Refresh package metadata first, then review and apply system updates as a separate, planned action. A full upgrade can restart services or require a reboot. Pacman requires a full system upgrade with -Syu; avoid refreshing only its package database with -Sy because partial upgrades are unsupported.

sudo apt update
apt list --upgradable
sudo apt upgrade

sudo dnf makecache --refresh
sudo dnf upgrade

sudo pacman -Syu

Step 2: Install Software Packages

Install Software Packages

Installation

Install primary sysadmin utilities along with their necessary library dependencies:

sudo apt install -y htop curl git ufw

sudo dnf install -y htop curl git firewalld

sudo pacman -S --needed htop curl git ufw

Step 3: Search Remote Repositories

Search Remote Repositories

Discovery

Query official distribution repositories to find exact package names and versions:

apt search PACKAGE

dnf search PACKAGE

pacman -Ss PACKAGE

Step 4: Clean Orphaned Packages & Caches

Clean Orphaned Packages & Caches

Maintenance

Preview cleanup before confirming package removals. Package managers prompt before removing dependencies or clearing caches; read the proposed changes and stop if an application still needs a package.

sudo apt autoremove --purge && sudo apt clean

sudo dnf autoremove && sudo dnf clean all

mapfile -t orphans < <(pacman -Qtdq)
if ((${#orphans[@]})); then
  printf 'Orphan packages to review:\n%s\n' "${orphans[@]}"
  sudo pacman -Rns -- "${orphans[@]}"
else
  echo 'No orphan packages found.'
fi
sudo pacman -Sc