ruby connect to oracle under linux

Still remember my blog on how to installing RubyOnRails On CentOS?
This is the additional on how to connect your ruby to oracle, to be precise rather than a blog, its a weblink. Because after I follow steps on

http://ruby-oci8.rubyforge.org/en/HowToInstall.html

I can connect my ruby to Oracle, the key is Oracle Instant Client (must install it, I choose the RPM version)
to test ruby connection to Oracle paste this code

ruby -r oci8 -e "OCI8.new('scott', 'tiger','ORCL').exec('select * from emp') do |r| puts r.join(','); end"

replace ORCL with your Oracle TNSName or try this

ruby -r oci8 -e "OCI8.new('scott', 'tiger','//server.company.com:1521/orcl').exec('select * from emp') do |r| puts r.join(','); end"

more detail about Oracle on Ruby
http://www.oracle.com/technology/pub/articles/haefel-oracle-ruby.html
http://www.oracle.com/technology/pub/articles/saternos-ror-faq.html