ssh-keyscan(1) on macOS
The text a60cf75a6472, as Mac OS X 10.5.8, Mac OS X 10.5.7, Mac OS X 10.5.6, Mac OS X 10.5.5 shipped it.
gather ssh public keys
Flags it lists
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-4 -
-6 -
-H -
-T -
-f -
-p -
-t -
-v