localhost:~ Brad$ rvm macruby
localhost:~ Brad$ rvm list
rvm rubies
jruby-1.5.2 [ x86_64-java ]
=> macruby-0.7 [ x86_64 ]
rbx-1.0.1-20100603 [ x86_64 ]
ruby-1.8.7-p302 [ x86_64 ]
ruby-1.9.2-p0 [ x86_64 ]
localhost:~ Brad$ macirb
/Users/Brad/.irbrc:1:in `<main>': uninitialized constant IRB::Irb (NameError)
from /usr/local/bin/macirb:13:in `block'
from /usr/local/bin/macirb:9:in `block'
from /usr/local/bin/macirb:3:in `<main>'
localhost:~ Brad$ irb
/Users/Brad/.irbrc:1:in `<main>': uninitialized constant IRB::Irb (NameError)
from /Library/Frameworks/MacRuby.framework/Versions/0.7/usr/bin/macirb:13:in `block'
from /Library/Frameworks/MacRuby.framework/Versions/0.7/usr/bin/macirb:9:in `block'
from /Library/Frameworks/MacRuby.framework/Versions/0.7/usr/bin/macirb:3:in `<main>'
localhost:~ Brad$ gem list
*** LOCAL GEMS ***
awesome_print (0.2.1)