I would like to make a Scheme script, that displays all files in
specified directory. I tried something like:

(define (script-fu-main a_arg)
       (dir (opendir a_arg))
       (dirent ())
    (while set! dirent (readdir dir)
       (print dirent)
    (closedir dir)

but this fails with:
ERROR: unbound variable (errobj opendir)

What should I do to correct this problem.

Thanks in advance


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