1. Terminal basics

2. Navigation (cd, ls, pwd)

3. File operations (cp, mv, rm, mkdir, touch)

4. Viewing files (cat, less, head, tail)

5. Searching (grep, find)

6. Piping & Redirection (|, >, >>)

7. Permissions (chmod, chown)

8. Process management (ps, kill, top)

9. Package managers (apt, brew)

10. Environment variables & PATH

11. Shell scripting basics (bash)