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Ruby is a new platform for web development that offers many new features that is unique. Here’s steps to install Rails 21 on Ubuntu:

• First, install Ruby and it’s dependencies…

sudo apt-get install ruby irb rdoc ruby1.8-dev rubygems libopenssl-ruby

• Now update the gem, by executing:

sudo gem update --system

• Then remove rubygems, since there may not two ruby games in one installation

sudo apt-get remove rubygems

• create symbolic link to the latest version of gem manager by executing:

sudo ln -s /usr/bin/gem1.8 /usr/bin/gem

• Now you can install rails by executing
  sudo gem install rails

Now, you can do rubying on your Ubuntu.

Tags: ruby on rails, ubuntu