[user@server workspace]$ bundle --gemfile=Gemfile-linux
Using rake (10.1.0)
Using bigdecimal (1.2.1)
Using builder (3.2.2)
Using ffi (1.9.0)
Using childprocess (0.3.9)
Using curb (0.8.4)
Using debugger-ruby_core_source (1.2.3)
Using io-console (0.4.2)
Using json (1.8.0)
Using minitest (5.0.6)
Using multi_json (1.7.9)
Using mysql2 (0.3.11)
Using rdoc (4.0.1)
Using ruby-debug-base19x (0.11.30.pre12)
Using ruby-debug-ide (0.4.17)
Using rubyzip (0.9.9)
Using websocket (1.0.7)
Using selenium-webdriver (2.34.0)
Using uuidtools (2.1.4)
Using vnctools (0.0.9)
Using bundler (1.3.5)
Your bundle is complete!
Use `bundle show [gemname]` to see where a bundled gem is installed.
[user@server workspace]$ bundle exec irb
1.9.3-p448 :001 > require 'curb'
LoadError: cannot load such file -- curb
        from (irb):1:in `require'
        from (irb):1
        from /var/lib/jenkins/.rvm/rubies/ruby-1.9.3-p448/bin/irb:13:in `<main>'