mkdir (Make Directory)
We’re gonna need some directories to store all these files we’ve been working on. The mkdir command (Make Directory) is useful for that, it will create a directory if it doesn’t already exist. You can even make multiple directories at the same time.
$ mkdir books paintings
You can also create subdirectories at the same time with the -p (parent flag).
$ mkdir -p books/hemmingway/favorites
–https://web.archive.org/web/20221020150809/https://linuxjourney.com/lesson/make-directory-mkdir-command