md5(1) on FreeBSD
The text 8c149d11f434, as FreeBSD 3.3-RELEASE, FreeBSD 3.2-RELEASE, FreeBSD 3.1-RELEASE, FreeBSD 3.0-RELEASE, FreeBSD 2.2.9-RELEASE, FreeBSD 2.2.8-RELEASE, FreeBSD 2.2.7-RELEASE shipped it.
calculate a message-digest fingerprint (checksum) for a file
Flags it lists
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-p -
-s -
-t -
-x