find(1) on macOS
The text 107ac145b44a, 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, Mac OS X 10.5.4, Mac OS X 10.5.3, Mac OS X 10.5.2, Mac OS X 10.5.1, Mac OS X 10.5 shipped it.
walk a file hierarchy
Flags it lists
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-E -
-H -
-L -
-P -
-X -
-d -
-f -
-s -
-x