Your Mac is a Unix machine

You use your Mac every day — Safari, Mail, the odd download. What almost nobody tells beginners is that underneath the pretty desktop sits a real, certified Unix system called Darwin, built on BSD foundations. That means the same command-line skills professionals use on Linux servers work right here on your own laptop. This course is your on-ramp: no prior Terminal experience assumed.

How each lesson works

There are no videos. You learn by reading the theory, then following the tools and the method, then doing it yourself on your own Mac. Every lesson ends with a small Challenge and a Show solution with the exact steps — so if you get stuck, you're never lost.

🛠 Tools you'll use

Your own Mac — nothing to install to start.
The built-in Terminal app and, later, the Homebrew package manager.

⚙️ The method (every topic)

Theory — understand why it works.
Tools + method — what to use and the approach.
Challenge — do it yourself on your Mac.
Show solution — step-by-step, only if you're stuck.

Because macOS shares its Unix roots with Linux, most command-line skills you build here transfer straight to servers, cloud boxes, and the more advanced Mobile Security Lab courses.

🎯 Challenge: Find out which version of macOS you're running, and confirm it's Unix underneath. Use the Apple menu, then think about what "Darwin" means.

Show solution

Click the Apple menu () top-left → About This Mac → read the macOS version name and number.
Later in this course you'll open Terminal and run uname -a — it prints Darwin, the Unix kernel your Mac runs. That single word confirms the Unix foundation everything else in this course builds on.

⚖️ For authorized, legal use only — practise on your own lab or systems you own.

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10 lessons · knowledge checks · final exam · verifiable certificate · in-browser Live-Lab

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What's in macOS for Beginners

1. macOS and Its Unix FoundationFree
2. Finder, Files and the System Layout🔒 Foundations
3. The Terminal on macOS (zsh)🔒 Core
4. Essential Commands and Navigation🔒 Core
5. Homebrew — Installing Tools🔒 Core
6. Users, Permissions and sudo🔒 Core
7. System Security — Gatekeeper, SIP and TCC🔒 Core
8. Networking Basics on macOS🔒 Core
9. Setting Up a Dev and Security Toolkit🔒 Core
10. Where to Go Next🔒 Next Step

Continue in the interactive course reader →