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I work at a remote site, and I often use rsync to copy Unix application directories from the corporate site, to my own. Often these directories are minor revisions of previous installations. (ie: /base/app/1.1, /base/app/1.2 /base/app/1.2.1 ) I can make a copy of the previous directory under the new name, and then do a checksum transfer, but that may waste a lot of time, up front, in