b2sum

Calculate BLAKE2 cryptographic checksums. More information: https://www.gnu.org/software/coreutils/b2sum.

b2sum path/to/file1 path/to/file2 ...

b2sum path/to/file1 path/to/file2 ... > path/to/file.b2

command | b2sum

b2sum --check path/to/file.b2

b2sum --check --quiet path/to/file.b2

b2sum --ignore-missing --check --quiet path/to/file.b2