Welcome to yet another installment of our Ruby mini-series. Capistrano (http://capify.org/) is a DSL written in Ruby for automating common tasks. While Capistrano is more often used for Rails deployment, it can easily be used for system automation as well.
A while back, I put together a presentation for the local Ruby user’s group. The presentation covers a very brief intro to Capistrano for simple system automation. You can download it here. I’m aware of at least one typo (a missing single quote) in the slides, there may be others.
Rather than repeat myself here, I’ll let the PDF do the talking. For the official documentation, see http://capify.org/getting-started