Terminal basics

Navigation (cd, ls, pwd)

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

Viewing files (cat, less, head, tail)

Searching (grep, find)

Piping & Redirection (|, >, >>)

Permissions (chmod, chown)

Process management (ps, kill, top)

Package managers (apt, brew)

Environment variables & PATH

Shell scripting basics (bash)