Info

The following list of Linux vocabularies are commonly used within the Linux community, thus it's extremely helpful not only while navigating Tuxie's Wiki but also for future reference.

The definitions are simplified to be beginner friendly.

Core Concepts

FOSS (Free and Open-Source Software)

Free means you can use, study, change, and share the software however you like with no cost. Open source means the source code (the blueprint of the software) is available for anyone to look at, modify, or improve.

FOSS is transparent, collaborative, and serves the community.

OS (Operating System)

An OS is a core layer of software that acts as a bridge between your computer's hardware and the applications you run. e.g. Windows, macOS, GNU/Linux.

GNU/Linux

A free and open source Unix-like operating system powered by the GNU collection of free software and the Linux Kernel. This set of software forms the operating system that we usually refer to simply as 'Linux'.

Virtualisation

Running one or more virtual computers (VMs) inside your real one, each acting like its own separate machine with its own OS. e.g. VirtualBox, QEMU/KVM, VMware.

Parts of the GNU/Linux OS

Linux Kernel

Kernel is the core part of the OS that manages hardware, processes, and memory. e.g. the Linux kernel.

Linux is a free and open source created by Linus Torvalds in 1991 and has since become the foundation for many operating systems. The word "Linux" by itself is often used to refer to Linux Distros.

DE — Desktop Environment

A desktop interface that where users can interact with application windows. (e.g., GNOME, KDE Plasma, XFCE).

Desktop Environment	Demo Image	Description
GNOME		A clean, modern interface with a focus on simplicity and productivity. Default in Fedora, Ubuntu, and many others.
KDE Plasma		Highly customisable. Offers a Windows-like experience with many advanced features.
Xfce		Lightweight and fast. Great for older hardware or users who prefer a traditional desktop layout.

Distros — Linux Distributions

Distros are different versions of the GNU/Linux OS, each with varying packages and focuses from the other.

	Distro	Description
	Fedora	A nice out-of-the-box experience. Simple to use and cutting edge at the same time.
	Arch Linux	DIY approach. Can be extremely minimal as it does not come with a GUI installer nor any DE by default. For advanced users.
	Debian	Stable and receives a new release every 2 years, often the base for other distros like Ubuntu.
	Ubuntu	Beginner-friendly, popular on desktops and servers.
	Linux Mint	Ubuntu-based with a familiar Windows-like feel.

Terminal — Command Line Interface, CLI

A text-based interface to interact with the OS by typing commands.

Shell

The command-line interpreter (e.g., Bash, Zsh) that executes user commands.

Bourne Again Shell (Bash) — The default shell in most Linux distributions.

GUI — Graphical User Interface

A visual interface with windows, icons, and menus (e.g., settings apps, software stores).

WM — Window Manager

Software that controls window placement and appearance. (e.g., Hyprland, i3, Openbox). DEs like Gnome and KDE often come with their own.

Boot & Installation

Firmware

Low-level software built into a piece of hardware that lets it start up and lets the OS talk to it.

BIOS (Basic Input/Output System)

Older firmware that initialises your hardware and hands control over to the bootloader when you switch your computer on.

UEFI (Unified Extensible Firmware Interface)

The modern replacement for BIOS. Faster, supports larger drives, and adds features like Secure Boot.

GRUB (Grand Unified Bootloader)

The bootloader — the first program that runs after firmware — that lets you pick which OS or kernel to start.

Initramfs (Initial RAM Filesystem)

A small, temporary filesystem loaded into memory during boot that prepares just enough of the system to mount your real filesystem and hand off to the kernel.

ISO

A single file containing an entire disk's worth of data, most commonly used to install or boot an OS from a USB drive or DVD.

System & File Management

Root

The user with full system control (the root user, /root directory).

sudo (SuperUser DO)

A command to run programs with root privileges.

Path

The location of a file/directory (e.g., /usr/bin/python3).

Partition

A section of your disk's storage that's split off and formatted on its own, e.g. keeping your OS files and personal files separate.

Symlink (Symbolic Link)

A shortcut pointing to another file/directory (like Windows shortcuts).

Alias

A custom shortcut for a command (e.g., alias ll='ls -la').

Package & Software Management

Package Manager

A tool to install/remove software (e.g., apt — Debian, dnf — Fedora, pacman — Arch).

Repository (Repo)

A server hosting software packages for download.

Dependency

Additional software required for a program to run.

Flatpak

A universal package format that works across Linux distros (sandboxed).

Networking & Permissions

SSH (Secure Shell)

A protocol for secure remote login (ssh user@host).

IP (Internet Protocol)

A unique address for network communication (ifconfig/ip a).

Processes & System Control

Daemon

A background service (e.g., sshd for SSH).

Systemd

A modern init system managing services (systemctl start/stop).

Contributors

aier9500Lunear01

Changelog

8/11/26, 3:11 PM

View All Changelog

• 3fe38-Vocab glossary: collapsible sections, boot terms, partition/virtualisationon 8/11/26
• 00c9a-#39 Reformat project so each markdown file has their own asset subfolder in the public asset folder.on 4/30/26
• 817b0-Minor adjustments to phrasing and formatting.on 4/30/26
• 41235-GB Englishon 4/30/26
• f5812-Replaced **bold with highlightson 2/4/26
• 35118-Grammar and Spell Checks for the entire Webon 12/11/25
• 7beb3-Better onboarding experience.on 12/10/25
• 8b7b2-Making the vocabs more visually appealing.on 6/26/25
• beb01-Vocab finalized, flatpak edited, Updated Readmeon 6/24/25
• 57245-Vocab simplifiedon 6/24/25
• 08c3f-Refactor Linux vocabularies documentation for clarity and beginner-friendlinesson 6/24/25
• a200d-Linux-vocab finishedon 6/20/25
• 64a0d-New to Wiki navbar setupon 6/15/25
• 80cb1-Adding Introduction section.on 6/14/25
• 6643e-Added introduction fileson 6/14/25