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Bootstrp Ruby on Rails

Install Rails 3

Prerequisite: Ruby

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$ ruby -v
ruby 1.9.3p429 (2013-05-15 revision 40747) [x86_64-darwin12.4.0]
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$ gem install rdoc ## to avoid "file 'lib' not found" error  
$ gem install rails --version "=3.2.14"

As Aug 6th, 2013, the following installed rails 4.0.0, I chose to use Rails 3 for now. Here is how downgrade.

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$ gem install rails 
$ gem uninstall rails
Successfully uninstalled rails-4.0.0
$ gem install rails --version "=3.2.14"

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