nc(1) on macOS
The text 6a815fc7313b, as macOS 10.15.6, macOS 10.15.5, macOS 10.15.4, macOS 10.15.3, macOS 10.15.2, macOS 10.15.1, macOS 10.15 shipped it.
arbitrary TCP and UDP connections and listens
Flags it lists
-
--apple-delegate-pid -
--apple-delegate-uuid -
--apple-ext-bk-idle -
--apple-nowakefromsleep -
--ecn -
-4 -
-6 -
-A -
-C -
-D -
-G -
-H -
-I -
-J -
-L -
-U -
-X -
-b -
-c -
-d -
-h -
-i -
-k -
-l -
-n -
-p -
-r -
-s -
-t -
-u -
-v -
-w -
-z