proFXP is a FXP (server-to-server FTP) client written in Perl. It features
TAB completion, site management, idle timers, SOCKS support, active and
passive mode, different listing modes and a very powerful "down-to-the
protocol metal" 2-char-command command line interface, pleasing newbies and
hardcore hackers alike.

WWW: http://duncanthrax.net/profxp/