Lesson 13: Linux and macOS
Week of Tue, Dec 8 · lesson closes Mon, Dec 14
Take Meerk's quiz for Lesson 13
This lesson's items
Exact due times are in Canvas.
Watch — Professor Messer
Watch — Professor Messer: Linux and macOS (220-1202)
Free, independent educational resource. Not affiliated with or endorsed by CompTIA. Watch, then read the notes below.
Know these cold
- Linux commands: ls (list), cd (change dir), pwd (current dir), chmod (permissions), apt/dnf (package install), grep (search text), top/htop (processes).
- Linux permissions: rwxrwxrwx = owner/group/others. chmod 755 = rwxr-xr-x. chown changes ownership.
- macOS: APFS filesystem, Terminal with zsh, Homebrew package manager, System Preferences → System Settings.
Meerk's quiz — open the Lesson 13 gate
10 questions, no time limit. 85% on your first attempt in a 24-hour window opens the gate. Retakes inside the window are practice — they help you learn, they don't count. Work alone; the point is to know it, not to have seen it.
Dinner Table Question
Ask at home: Why do servers run Linux instead of Windows more often than not?
En español: ¿Por qué los servidores ejecutan Linux en lugar de Windows con más frecuencia?