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A Scheme script uses the variable argv to refer to
its arguments. For example, the following script
echoes all its arguments, each on a line:
":"; exec mzscheme -r $0 "$@"
;Put in argv-count the number of arguments supplied
(define argv-count (vector-length argv))
(let loop ((i 0))
(unless (>= i argv-count)
(display (vector-ref argv i))
(newline)
(loop (+ i 1))))
Let's call this script echoall. Calling echoall
1 2 3 will display
1
2
3
Note that the script name ("echoall") is not included in
the argument vector.
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