I want to duplicate a directory on an FTP server I'm connected to from my Mac via the command-line

Let's say I have `file`. I want to have `files2` with all of `file`'s subdirectories and files, in the same directory as the original. What would be the simplest way to achieve this?

EDIT:

With `mget` and `mput` you could download all files and upload them again into a different folder but this is definitely NOT what i want/need (I started this question trying to avoid duplicating with this download upload method from the dektop client)