11 · The Command Line
cp / mv / rm
Copy, move, delete files
The core file commands: cp copies, mv moves or renames, rm deletes. rm is unforgiving — there's no trash can, and “rm -rf” erases an entire folder instantly and permanently.
Concrete example
“mv draft.txt final.txt” renames a file; “rm -rf build/” wipes the build folder and everything in it.
Why it matters
Everyday file handling — and “rm -rf” is the classic way people nuke their own work, so read twice before you run it.