On Fri, Sep 25, 2020 at 01:49:25PM +0200, Albretch Mueller wrote:
I have losts of (not necessarily all) text files (say in the 10 of thousands) in various directories which I need to process in a batch, but before I do that I want to make sure that I get a baseline of the source files. I use: a) crc b) md5sum c) sha###sum because those are three different checksum utilities based on different algorithms which work fast enough and offer a set signatures which are good enough.
Just one would be good enough (pick the sha256sum). What you're doing is a waste of time. If you want to future proof then use sha3, via the rhash package.