b3sum
Command line utility for calculating BLAKE3 hashes.
TLDR
Calculate the BLAKE3 checksum for one or more files
$ b3sum [path/to/file1 path/to/file2 ...]
Calculate and save the list of BLAKE3 checksums to a file
$ b3sum [path/to/file1 path/to/file2 ...] > [path/to/file.b3]
Calculate a BLAKE3 checksum from stdin
$ [command] | b3sum
Read a file of BLAKE3 sums and filenames and verify all files have matching checksums
$ b3sum --check [path/to/file.b3]
Only show a message for missing files or when verification fails
$ b3sum --check --quiet [path/to/file.b3]
