The following code works on linux.
But on MacOSX, no response
------
#lang racket
(require racket/system)
(display (port->string (car (process     "racket -e '(+ 10 3)'"))))
------


However this works on MacOSX
------
#lang racket
(require racket/system)
(display (port->string (car (process "ls'"))))
------
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