duff is a command-line utility for identifying duplicates in a given set of files.
It attempts to be fast and uses the SHA family of message digests as a part of the comparisons.
This is free and open source software.
Website: github.com/elmindreda/duff
Support:
Developer: Camilla Löwy
License: BSD License

duff is written in C. Learn C with our recommended free books and free tutorials.
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Read our verdict in the software roundup.
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