Danny LittleMar 1, 2023
@siracusa recommended in ATP 516 that writing a data integrity tool would be a fun programming project; I have since made one, and he was right! As he also recommended in some Hypercritical episode, I blogged about it: https://dlittle.me/blog/bitwrought
Danny Little | Bitwrought

The making of a file integrity and bit rot command line tool.

Show threadJan Rychter

@siracusa @dslittle22 I wrote an integrity checker several years ago in Perl, do I get extra credit for language choice?

(I wanted the tool to be usable in the long term, 10 years at least, which excludes most "fashionable" languages)

Link to the tool: https://github.com/jwr/ccheck

GitHub - jwr/ccheck: Simple, easy to use, minimal consistency checker (hasher) for file archives.

Simple, easy to use, minimal consistency checker (hasher) for file archives. - GitHub - jwr/ccheck: Simple, easy to use, minimal consistency checker (hasher) for file archives.

GitHub
Mar 2, 2023 at 1:38pmWeb
Show threadJohn SiracusaMar 2, 2023
@jrychter Missing some error-checking in there…
Show threadJan RychterMar 2, 2023
@siracusa Oh, it's missing a lot. And I didn't want to write it in the first place, I just couldn't find anything. But it works well enough to have served me for years now.
Show threadDanny LittleMar 3, 2023

@jrychter nice! Do you still get much use out of it?

Absolutely bonus points for perl :)

Show threadJan RychterMar 3, 2023
@dslittle22 Yes, I use it every couple of months or so to check the integrity of my archives. Haven't seen corruption so far, only extra files added by various apps.