The cp command in Linux explained
The cp command copies files and folders. It is one of the most useful commands for anyone using a live USB drive or a fresh Linux install.
Syntax
cp [options] source destination
Examples
cp notes.txt backup.txt: copy a filecp -r photos photos-backup: copy a folder and its contents
Tip
Add -i to be asked before overwriting an existing file.
Keep learning
New to the terminal? Start with Linux terminal basics. You can try every command safely from a live session: see how to try Linux without installing it. Run man cp in a terminal for the full manual.
Frequently asked questions
How do I see every option for cp?
Run man cp for the full manual, or try cp --help for a short summary.
Do I need sudo to run cp?
Not for your own files. You only need sudo when the command changes something owned by the system or another user.
Is it safe to practise cp on a live USB drive?
Mostly yes, because a live session starts fresh each time. Be careful with commands that write to your internal disk, such as rm on a mounted drive or dd.