This is a list of all available ftp commands that can be used for file transfers using the file transfer protocol
reget remote-file [local-file]
Reget acts like get, except that if local-file exists and is smaller than remote-file, local-file is presumed to be a par- tially transferred copy of remote-file and the transfer is continued from the apparent point of failure. This command is useful when transferring very large files over networks that are prone to dropping connections.