The mkdir command in Linux explained
The mkdir command creates a new folder. It is one of the most useful commands for anyone using a live USB drive or a fresh Linux install.
Syntax
mkdir [options] name
Examples
mkdir projects: make a foldermkdir -p projects/2026/notes: make nested folders in one go
Tip
The -p option also stops an error if the folder already exists.
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 mkdir in a terminal for the full manual.
Frequently asked questions
How do I see every option for mkdir?
Run man mkdir for the full manual, or try mkdir --help for a short summary.
Do I need sudo to run mkdir?
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 mkdir 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.