Do you need to run echo.rkt under control of racket? If you compile it as a
standalone, you can use
(current-command-line-arguments)
within echo.rkt to access the vector or command line arguments.
----- Original Message -----
From: "Rouben Rostamian" <rostam...@umbc.edu>
To: <users@racket-lang.org>
Sent: Monday, August 20, 2012 12:42 AM
Subject: [racket] Need help with running racket from the command-line
I am having difficulty in interpreting Racket's command-line
options described in the User Guide. Please help if you can.
I want to do something like this:
racket -t echo.rkt -e '(echo "hi")'
The file echo.rkt (which is given at the end of this message)
is a module that provides a function "echo" which simply prints
its argument to the terminal.
I expect the Unix command
racket -t echo.rkt -e '(echo "hi")'
to print "hi" to the terminal and exit. But it doesn't; it complains
about an unbound identifier. This is Racket v5.1.3, if it matters.
Here is the content of the file echo.rkt:
;; echo.rkt ------------
#lang racket
(provide echo)
(define (echo x)
(display x)
(newline))
;; end of echo.rkt -----
--
Rouben Rostamian
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