What Is Linux? A Beginner's Guide
Linux is a free OS that powers web servers, smartphones, and supercomputers. Learn its history, key features, and where it runs — with diagrams.
Linux Articles
20 articles · in orderWindows vs. Linux: What's the Difference?
Windows and Linux are both OSes, but they differ in price, openness, and main use cases. A diagram-based comparison of their strengths and purposes.
Let's Install Ubuntu
Ubuntu is Linux's most popular distro. Three ways to try it without breaking your PC — USB boot, virtual machine, and dual boot — explained with diagrams.
Linux Command Basics: Terminal 101
The terminal lets you control your PC with text instead of a mouse. Learn how Linux commands are structured, how they run, and the first operations to try — with diagrams.
Top 10 Linux Commands: ls/cd/cat/grep & More
The 10 Linux commands you should learn first — ls, cd, cat, grep, find, and more — with real examples for upper-elementary through high school.
File Permissions Explained
Every Linux file has read, write, and execute permissions. Learn how to read permission strings and use chmod and chown — explained with diagrams.
What Is sudo?
sudo is the Linux command that grants administrator privileges. Learn why it exists, when to use it, and how to stay safe — with diagrams for upper-elementary through high school.
How to Connect via SSH
SSH lets you securely log into a remote server as if it were right in front of you. Learn the difference between password and key authentication, with diagrams for upper-elementary through high school.
Running a Server with Linux
Linux servers power websites and apps around the world. Learn what a server is, what kinds exist, and how to run one at home — with diagrams for upper-elementary through high school.
What Is a Terminal?
That black window with text that engineers type into — it's called a terminal. Learn why it exists, how it differs from a shell, and why engineers love it — explained with diagrams.
Why Program on Linux?
Why do most professional engineers program on Linux? We explain the differences from Windows and why Linux makes setting up a dev environment so much easier — with diagrams.
Why Engineers Use Linux
Google, Facebook, and IT engineers worldwide love Linux. We explain the 5 essential reasons — servers, automation, OSS culture, and more — with diagrams.
Intro to Building a Web Server on Linux
How to install Apache or nginx on Ubuntu and publish your own website. From installation to verification and going live — explained with diagrams.
Intro to Shell Scripting
Shell scripts let you bundle multiple commands into a single file and run them all at once. Learn the basics and useful tricks — explained with diagrams.
How to Choose Linux Learning Books
There are countless Linux books out there — how should students choose? We explain a level-by-level selection guide and the types of books that work best, with diagrams.
The Benefits of Learning Linux
How does learning Linux help your career, education, and skills? We explain 6 concrete benefits with diagrams.
GUI vs CUI: What's the Difference?
GUI means clicking icons with a mouse; CUI means typing commands. We explain the strengths of each and when to use which — with diagrams.
Linux on a Raspberry Pi
The Raspberry Pi is a full Linux PC the size of a credit card. Learn about the price, what you can do with it, and how to combine it with electronics projects — with diagrams.
What Linux Certifications Are There?
LPIC, Linux+, Red Hat — what kinds of Linux certifications exist? We explain which ones you can aim for and how to study, with diagrams.
Why Linux Will Help Your Future
Cloud, AI, IoT, embedded systems — Linux is the foundation of every major IT field. We explain why Linux is a skill that stays relevant for 20+ years, with diagrams.