mirror

keeps FTP archives up-to-date

Mirror uses the FTP protocol to locally duplicate remote host files and directories selected with Perl regular expressions. By default transfers only files missing locally or whose remote sizes or time-stamps have changed. Can reduce directory download using compressed listings in ls-lR.gz files or further using compressed differences of daily listings in ls-lR.patch.gz files. Amongst many flexible options it can gzip and split files. Tracks large distant FTP archives accurately with low download volume. Simpler programs like "mirrordir", "rsync" or "wget" use less memory and may copy directory trees faster between local machines.