How to turn Rails programs into standalone programs, via Tar2RubyScript and RubyScript2Exe; not the proper way to deploy Rails programs on production servers; by Erik Veenstra.
Article presents best ones that Ideacodes LLC web consultant Max Kiesler found over the last year of many hours searching google, del.icio.us, digg, etc., looking for usable and relevant examples.
Practical introduction to features: command-line options, syntax, built-in variables, functions, many commonly used classes and modules. [Marakana Inc.]