#!/bin/sh (cd /home/programs/arc; /home/programs/scheme/bin/mzscheme -f as.scm)
http://arclanguage.org/item?id=9263
and
http://arclanguage.org/item?id=9382
Also - here are a few others to read:
1. Starting an arc script: http://arclanguage.org/item?id=9617
2. Easy means to search the arc forum: http://af.searchyc.com/
3. Good documentation: http://arcfn.com/