How to signal EOF to Erlang shell program on OSX and in general

[Rick O'Shea]

Requirement: accumulate a list of strings until eof is detected on stdin.   I am unable to generate an eof or enter a blank line using fread:

{ok, A} = io:fread("my kingdom for an eof or blank line: "~s")

Blank lines are echoed to the console but otherwise ignored.  Neither Ctrl-D not Ctrl-Z achieves the desired result (intercepted by the Erlang shell itself).  

I would like to match case A of eof or "~n"