foreign-c-libraries/retropikzel/system/README.md

Execute a shell command.

Built upon (foreign c).

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(system command)

command is a string containing the command you want to run.

Returns the exit code of the command.

Example:

(import (scheme base)
        (scheme write)
        (scheme file)
        (retropikzel system))

(define testfile "test.txt")
(system (apply string-append `("echo \"Hello\" > " ,testfile)))

(define text (with-input-from-file testfile (lambda () (read-line))))
(display text)
(newline)