rsync is a replacement for rcp (and scp) that has many more features. It uses the “rsync algorithm” which provides a very fast method for remote files into sync. It does this by sending just the differences in the files across the link, without requiring that both sets of files are present at one of the ends of the link beforehand. Here are some of the tools to manage rsync easily.
Grsync is a GUI for rsync, the command line directory synchronization tool. It supports only a limited set of rsync features, but can be effectively used to synchronize local directories.
Downloads and Documentation
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