rwsnoop(1m) on macOS
The text 73c2588d886b, 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.
snoop read/write events. Uses DTrace.
Flags it lists
-
-P -
-Z -
-j -
-n -
-p -
-t -
-v