This is a really simple command-line app that I wrote to compare the contents of three supposedly equal directories containing 10k files (250 GB).
It supports N different directories, which are defined in the source. It will then make sure the directory/file hierarchy matches and file contents match based on SHA-1. SHA-1 was chosen for speed, but be aware that it's not cryptographically secure, so something stronger should be used if you're checking against more than standard storage failure.
haysearch option means that the first directory can be a subset of the others.
This project is not actively maintained, however feel free to send bug reports or pull requests.
© Copyright 2016 - 2018 Kaur Kuut
Licensed under the Apache 2.0 license