ruby-which

by Pistos github.com/Pistos/ruby-which

For those times when you don’t know which version of a library you’re require-ing, or what path on your system it’s coming from. Returns the full library path if the given library is found in the $LOAD_PATH.

“you need organization…” – manveru

Installation

gem install ruby-which --source http://gems.github.com

Example usage:

require 'rubygems'
require 'ruby-which'
puts Which.which( 'm4dbi' )   #=> /usr/lib/ruby/gems/1.8/gems/m4dbi-0.6.2/lib/m4dbi.rb

Or from your shell:

rwhich m4dbi
# Outputs: /usr/lib/ruby/gems/1.8/gems/m4dbi-0.6.2/lib/m4dbi.rb