Rust clone of the BLAKE2b checksum utility in GNU coreutils.
cargo install b2sum
Print or check BLAKE2 (512-bit) checksums.
With no FILE, or when FILE is -, read standard input.
Usage:
b2sum [options] [<filename>]...
b2sum (-h | --help)
b2sum --version
Options:
-c, --check read BLAKE2 sums from the FILEs and check them
-l, --length=BITS digest length in bits; must not exceed the maximum for the
blake2 algorithm and must be a multiple of 8 [default: 512]
--tag create a BSD-style checksum
The following five options are useful only when verifying checksums:
--ignore-missing don't fail or report status for missing files
--quiet don't print OK for each successfully verified file
--status don't output anything, status code shows success
--strict exit non-zero for improperly formatted checksum lines
-w, --warn warn about improperly formatted checksum lines
-h, --help display this help and exit
--version output version information and exit
The sums are computed as described in RFC 7693. When checking, the input
should be a former output of this program. The default mode is to print
a line with checksum and name for each FILE.