Checksum utility for many thousands of files?

[WebHead]

I'm backing up many terabytes of data and am paranoid about bit rot. I figure regularly comparing the files' checksums is the best way to detect this. Are there any utilities that can easily record and compare the checksums for tens, or even hundreds, of thousands of files? Or should I do it per folder and then drill down where necessary?

 

[Wizec]

Rhash might work for you:

GitHub - rhash/RHash: Great utility for computing hash sums

Great utility for computing hash sums. Contribute to rhash/RHash development by creating an account on GitHub.

github.com

 

[WebHead]

Many thanks

 

[WebHead]

For the record, I also found this in the Mac App Store. A version for individual files is available too:

Checksum Folders – Nordcode