A good Ruby & Ruby on Rails cheat sheet

Blaine Kendall has put together [a handy PDF containing many Ruby and Rails tips](http://www.blainekendall.com/index.php/rubyonrailscheatsheet/).

Via [Curt Hibbs](http://blog.curthibbs.us/articles/2006/01/09/an-excellent-ruby-on-rails-cheatsheet).

Authored by John Nunemaker (Noo-neh-maker), a programmer who has fallen deeply in love with Ruby. Learn More.

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