Recipes for scala scripting in shell/windows :-) from the official documentation: http://www.scala-lang.org/docu/files/tools/scala.html

hello.bat

::#!
@echo off
call scala -savecompiled %0 %*
goto :eof
::!#
/*
 * this is a scala script for Windows!
 */
Console.println("Hello, world!")
argv.toList foreach Console.println

hello.sh

#!/bin/sh
exec scala -savecompiled "$0" "$@"
!#
/*
 * this is a scala script for Unix!
 */
Console.println("Hello, world!")
argv.toList foreach Console.println