gistfile1.txt

$ rvm install jruby
jruby-1.5.2 - #fetching 
jruby-1.5.2 - #downloading jruby-bin-1.5.2, this may take a while depending on your connection...
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 11.0M  100 11.0M    0     0   147k      0  0:01:16  0:01:16 --:--:--  137k
jruby-1.5.2 - #extracting jruby-bin-1.5.2 to /Users/sarah/.rvm/src/jruby-1.5.2
jruby-1.5.2 - #extracted to /Users/sarah/.rvm/src/jruby-1.5.2
Building Nailgun
jruby-1.5.2 - #installing to /Users/sarah/.rvm/rubies/jruby-1.5.2
jruby-1.5.2 - #importing default gemsets (/Users/sarah/.rvm/gemsets/)
Copying across included gems

$ rvm use jruby
Using /Users/sarah/.rvm/gems/jruby-1.5.2

$ gem list

*** LOCAL GEMS ***

bouncy-castle-java (1.5.0145.2)
bundler (1.0.2)
columnize (0.3.1)
jruby-openssl (0.7.1)
rake (0.8.7)
rspec (1.3.0)
ruby-debug (0.10.3)
ruby-debug-base (0.10.3.2)
sources (0.0.1)