It would be great if ftputil supported the transfer restarts (i.e. to continue an incomplete download).
From spec (http://war.jgaa.com/ftp/rfc/rfc959.txt):
The argument field represents the server marker at which file transfer is to be restarted. This command does not cause file transfer but skips over the file to the specified data checkpoint. This command shall be immediately followed by the appropriate FTP service command which shall cause file transfer to resume.
Most likely I won't support the
RESTverb directly, but rather provide something like in ticket #61.
I'm marking this as duplicate of ticket #61. Subsequent comments will go there.