stty(1) on macOS
The text 963be79f8cef, 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.
set the options for a terminal device interface
Flags it lists
-
-a -
-e -
-evenp -
-f -
-g -
-oddp -
-parity