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DEFIANT-FG is a powerful, light-weight, open source, command line tool to monitor for corruption, changes or missing files in a directory structure.

It's your ideal companion to monitor cold backups and archival data on external media. Plug your external hard drive in periodically and test that the data the drive is giving you is correct.

Helps detect bitrot and early signs of media failure.

For releases visit this page.

Alternatively, click here to download then follow the installation instructions to either build self or install non-DEB package.


Open Source

The source code is located on my GitHub repository.