Ubuntu tutorials

Remove unused packages on Ubuntu with apt autoremove for orphaned dependencies, apt clean and autoclean for download cache, purge rc config leftovers, protect apps with apt-mark manual, and prune old Snap …

Install Wireshark on Ubuntu with sudo apt install wireshark from universe, allow non-root capture via wireshark-common debconf, add your user to the wireshark group, and optionally install tshark for CLI-only capture on …

Install jq on Ubuntu with sudo apt install jq, verify with jq --version, pretty-print and filter JSON from files and curl output, fix Unable to locate package jq with apt update, and optionally install jq 1.8.x from …

Install zlib on Ubuntu with sudo apt install zlib1g-dev for headers and pkg-config, fix configure could not find the zlib library and zlib.h not found errors, verify with pkg-config --modversion zlib, and optionally …

Install NVM on Ubuntu with the official install.sh script, load it in bash or zsh, install LTS Node.js with nvm install --lts, switch versions with nvm use, set a default alias, and fix nvm command not found and Snap …

List obsolete packages on Ubuntu with apt list ?obsolete, preview removal with apt-get -s, purge safely after do-release-upgrade, and distinguish obsolete packages from autoremove and rc config cleanup.

Install Slack on Ubuntu with Slack Packagecloud APT repo, official slack-desktop .deb from slack.com, or sudo snap install slack. Launch with slack, update per method, and remove only one desktop package at a time.

Install HPLIP on Ubuntu with sudo apt install hplip hplip-gui for most HP printers, use HP SourceForge .run when your model needs a newer driver, run hp-plugin and hp-setup to add the device, and remove conflicts before …

Install Kali Linux tools on Ubuntu with sudo apt install for nmap, sqlmap, nikto, and other hacking tools in Ubuntu repositories. Use Snap when apt has no package. Katoolin is legacy on modern Ubuntu—use a Kali VM when …

Install Rscript on Ubuntu with sudo apt install r-base from universe, optionally add the CRAN apt repository on supported LTS releases, verify with Rscript --version, run example.R from the shell or cron, and uninstall …

Install Grafana on Ubuntu 25.04 from the official apt.grafana.com repository or a .deb package: import the GPG key, enable grafana-server, open port 3000, log in as admin, and verify with curl and /api/health.

Install XCP-ng guest tools on Ubuntu with apt install xe-guest-utilities or the guest-tools ISO from Xen Orchestra; enable xe-daemon, verify management agent detection, and use the ISO when apt lags behind XCP-ng.

Install qbittorrent-nox on Ubuntu from the official PPA or universe repo, accept the legal notice, log in to the Web UI, run it under a dedicated user with the bundled systemd template, open the firewall safely, and fix …

Install Telegram Desktop on Ubuntu with Snap, the official tsetup Linux tarball from desktop.telegram.org, or Flatpak: verify version 6.9.3, launch from the app menu, update with snap refresh, and uninstall cleanly.

Install or upgrade Python on Ubuntu 22.04 and 24.04 without replacing system python3: latest stable 3.14, optional 3.15 pre-release, Deadsnakes PPA or source altinstall, virtualenv, safe project migration, and …

Install NordVPN on Ubuntu with the official install.sh script or Snap, add your user to the nordvpn group, log in with nordvpn login, connect with nordvpn connect, and fix Permission denied nordvpnd.sock and LAN …

Install Steam on Ubuntu with Valve official steam_latest.deb (recommended), sudo apt install steam-installer from multiverse, Snap, or Flatpak. Enable i386 multiarch, install GPU drivers, bootstrap the client on first …

List installed packages on Ubuntu with apt list --installed, dpkg -l, snap list, and apt-mark showmanual. Search one package, count totals, export a list for another machine, and check upgradable packages.

Install gpart on Ubuntu with sudo apt install gpart from universe, run a read-only scan when the MBR or partition table is damaged, use gpart on a live USB, and know how gpart differs from the GParted graphical editor.

Install AWS CLI on Ubuntu with the official v2 Linux installer (recommended), sudo apt install awscli from universe, or the Amazon Snap. Configure with aws configure, verify with aws --version and aws sts …

Install Jellyfin on Ubuntu with the official apt repository on 22.04 and 24.04 LTS, or run jellyfin/jellyfin in Docker on Ubuntu 25.04 where noble-repo packages fail dependency checks. Enable systemd, open port 8096, and …

Install Fastfetch on Ubuntu with sudo apt install fastfetch from universe, or use the official GitHub .deb or tarball for the latest release. Configure presets, replace unmaintained Neofetch, and run fastfetch on login.

Apple does not ship iTunes for Linux. On Ubuntu use Apple Music in a browser, Rhythmbox or Amberol for local libraries, or experiment with legacy iTunes 12.x under Wine—expect instability, no iPhone sync, and …

Install the Google Chrome web browser on Ubuntu by downloading the official amd64 .deb from Google, run sudo apt install ./google-chrome-stable_current_amd64.deb, set Chrome as default, update with apt, and compare …

Install Joplin on Ubuntu with the official GitHub install script, Snap joplin-desktop, or Flatpak net.cozic.joplin_desktop from Flathub—launch the app, create your first notebook, sync notes, and fix libfuse2 AppImage …

Access Google Drive on Ubuntu through GNOME Online Accounts and the Files app, mount with rclone, use google-drive-ocamlfuse from a legacy PPA, or install the commercial Insync .deb—link your Google account and verify …

Install qBittorrent on Ubuntu with sudo apt install qbittorrent from universe, the official qbittorrent-stable PPA, or Flathub. Compare GUI vs qbittorrent-nox, avoid outdated Snap builds, accept the legal notice, and …

Install MusicBrainz Picard on Ubuntu from universe apt, the official MetaBrainz Snap, or the MusicBrainz stable PPA: verify with picard -V, tag your first album, and uninstall cleanly.

Install Redis on Ubuntu with sudo apt install redis-server from universe, or add the official packages.redis.io repo for Redis 8.x. Start redis-server with systemd, test with redis-cli ping, set a password, and harden …

Install OpenSSL on Ubuntu with apt (openssl and libssl-dev), verify with openssl version, understand when the distro package is enough versus building from source, and generate a test TLS key and certificate.