netstat(1) on macOS
The text da1c7e17f016, as Mac OS X 10.6.3, Mac OS X 10.6.2, Mac OS X 10.6.1, Mac OS X 10.6 shipped it.
show network status
Flags it lists
-
-A -
-I -
-L -
-W -
-a -
-b -
-d -
-f -
-g -
-i -
-l -
-m -
-n -
-p -
-r -
-s -
-w