| Algorithm | MacOS | Linux |
|---|---|---|
| MD5 | md5 |
md5sum |
| SHA1 | shasum -a 1 |
sha1sum |
| SHA256 | shasum -a 256 |
sha256sum |
| SHA512 | shasum -a 512 |
sha512sum |
With no FILE, or when FILE is -, read standard input. Attention echo produces a trailing newline character which is hashed too, e.g. echo -n "Example string" | md5sum -.
Checksums can be written to a file as follows:
sha1sum test.txt test2.txt > files.sha1
And can be validated by:
sha1sum -c files.sha1
Helper functions
alias sha256sum='shasum --algorithm 256'
# or
sha256() { echo -n "$*" | shasum -a 256 }