cs

concurrently calculate/verify checksums (cs)

It's a simpler version of shasum + md5sum, but concurrently and only with support for md5, sha1, sha256, and sha512.

usage

# create checksums
cs -a 256 < foo.txt
cs foo.txt
cs -a sha1 foo.txt foo.txt foo.txt > checksums.sha1

# verify
cat checksums.sha1 | cs -c 
cs -c checksums.sha1

# both
cs $(find ~/src/mcquay.me | grep  '\.go$') | cs -c