ncftp

"NcFTP Client is a set of FREE application programs implementing the File Transfer Protocol. ... The program has been in service on UNIX systems since 1991 and is a popular alternative to the standard FTP program, /usr/bin/ftp." - https://www.ncftp.com/ncftp/

Examples

Connect to a non-standard port

ncftp ftp://10.8.5.103:5000

Recursively put a directory

put -r local_dir

Recursively get a directory

get -T -R remote_dir

Note: Without the -T option you may run into the error:

tar: This does not look like a tar archive
tar: Exiting with failure status due to previous errors

Recursively delete a remote directory

This does not always work.

rm -r remote_dir