Freedup eliminates duplicate files using links and thus reduces the amount of used disk space within one or more file systems. Freedup searches all provided file system trees for identical files and links them together. If the devices differ, a symbolic link is used, otherwise a hard link by default. Many options allow you to modify the file comparison, the linking behavior, and the output. The input is either taken from external pipe input or from an internally generated pipe using find. License: GNU General Public License (GPL) Changes: The main changes in this release concern the hash functions. An internal hash function is now included in the source. It is chosen by default. A new '-t' switch allows you to select one of a set of external hash functions. '-V' now reports the version of freedup and its included sources. The development section shows improvements in the Makefile. Currently, GNU make is required to work reliably, which might lead to difficulties during the build process with non-Linux systems. The testing section was also significantly enhanced.

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