Install Ruby on Rail and mySql on Snow Leopard - Mac OS X 10.6

Original Mac $PATH 
- /usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin

Install Xcode

Install Ruby on Rail and mySql
1. Followed this link 
http://hivelogic.com/articles/compiling-ruby-rubygems-and-rails-on-snow-leopard 

and do step 1: SET THE PATH

2. Type the following 
- sudo gem update --system
- sudo gem sources -a http://gemcutter.org/
- sudo gem update rails
- sudo gem install sqlite3-ruby

3. Followed this link
http://hivelogic.com/articles/compiling-mysql-on-snow-leopard