Connect to the FTP server host with username and password. If username and password are not specified, user "anonymous" with no password is used. The returned FTP object f represents the established FTP connection.
Download a remote file file or directory dir to the local directory on the FTP connection f. f is an FTP object returned by the
ftp
function.The arguments file and dir can include wildcards and any files or directories on the remote server that match will be downloaded.
If a third argument target is given, then a single file or directory will be downloaded with the name target to the local directory.
Upload the local file file into the current remote directory on the FTP connection f. f is an FTP object returned by the ftp function.
The argument file is passed by the glob function and any files that match the wildcards in file will be uploaded.