lftp is sophisticated file transfer program with command-line
interface.  It supports the FTP, HTTP, HTTPS, SFTP, FISH, and
BitTorrent protocols, advanced and obscure features of the protocols,
proxy servers, automatic retries on non-fatal errors and timeouts,
continuation of interrupted file transfers, mirroring, transfer rate
throttling, multiple connections and background jobs, shell-like
command syntax and comprehensive scripting, command-line editing
(via the GNU Readline library), context-sensitive command completion,
command history, and a lot more.

• Dmitry V. Levin
• Aleksei Nikiforov
• Igor Vlasenko
• Alexey Morozov
• Michael Shigorin
• Konstantin Timoshenko
• Stanislav Ievlev

• lftp
• lftp-debuginfo