Freedup finds and eliminates duplicate files by linking them, and thus reduces the amount of used disk space within one or more file systems. By default, hardlinks are used on a single device, symbolic links when the devices differ. A set of options allows you to modify the methods of file comparison, the hash functions, the linking behavior, and the reporting style. You may use batch or interactive mode. Freedup usually only considers identical files, but when comparing audio or graphics files, you may elect to ignore the tags. License: GNU General Public License (GPL) Changes: This release no longer needs external commands to perform its tasks. If no "find options" are passed using -o, the internal tree scanning is used. It is supposed to run faster, but this could not be proven. The only visible advantage is a progress indicator.

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