fconfigure(n) on macOS
The text 33ff47a2726b, as Mac OS X 10.2.2, Mac OS X 10.2.1, Mac OS X 10.2, Mac OS X 10.1.5, Mac OS X 10.1.4, Mac OS X 10.1.3, Mac OS X 10.1.2, Mac OS X 10.1.1, Mac OS X 10.1, Mac OS X 10.0.4, Mac OS X 10.0 shipped it.
Set and get options on a channel
Flags it lists
-
-blocking -
-buffering -
-buffersize -
-encoding -
-eofchar -
-translation