Installing SimpleCrawler is easy. First, make sure you have Ruby installed. SimpleCrawler is distributed as a Ruby gem. This means you have to install rubygems too.
To install the simplecrawler gem in Microsoft Windows, open a command window and type:
gem install simplecrawler
To install the simplecrawler gem in Mac OS X or Linux type:
sudo gem install simplecrawler
The latest version of the simplecrawler gem will be downloaded. JRuby users may have to install hpricot separately before installing SC.
From here you may want to try some of the examples.