chmod(1) on macOS
The text 5e18051c88ac, 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.
change file modes or Access Control Lists
Flags it lists
-
-C -
-E -
-H -
-I -
-L -
-N -
-P -
-R -
-a -
-f -
-h -
-i -
-v