md5(1) on OpenBSD
The text 28b41d3d339a, as OpenBSD 5.2, OpenBSD 5.1, OpenBSD 5.0, OpenBSD 4.9 shipped it.
calculate a message-digest fingerprint (checksum) for a file
Flags it lists
-
-b -
-p -
-q -
-r -
-s -
-t -
-x