Easy Ruby and RubyGems install on CentOS 5 | March 18th, 2008
I found this resource today and it saved me heaps of time:
http://blog.simb.net/2007/08/21/installing-ruby-and-rubygems-on-centos-5/
The ‘meat and potatos’ of it is this:
yum install -y ruby
yum install -y ruby-devel ruby-docs ruby-ri ruby-irb ruby-rdoc