This video gives a very basic introduction as how Web Application works. It provides a simple overview of the various components involved in a MVC(Model View Controller) architecture. Finally it shows how this concept applies to application development via Ruby on Rails.

Ruby Cheat Sheet Part 1.

Version 1.0

Mini Guide v1.0 for Ruby Language. It based on ruby 1.8.4.

By default rails does not clear out stale sessions from the session store. Depending on the configuration session can be stored in the local file system or the database.

This script retrieves the content of url and dumps it to the output

Example copy this script into file named : get_page.rb

#!/usr/bin/ruby
require 'net/http'
host,port,url = ARGV
http = Net::HTTP.new(host, port)
STDERR.puts "url {#url}"
response, data = http.get(url)
puts data

Usage

ruby get_page.rb <host> <port> <url>

The url is specified as a relative path