download entire folders using command-line FTP?

I need to download entire folders from one Haiku machine to another, but not sure if it's possible. Does anyone have a short list of basic command-line ftp commands? I can connect and use "ls" to list the remote files, and use "get" to download a single file, but that's about it. I've already done a lot of internet searching for ftp commands, but the commands differ between OS's. GUI-based ftp clients won't work between my two Haiku machines, so I need to use Terminal.