Apologies up front but I am a total newbie to Ruby and just starting out
using Peter C.s book.
I am on a Mac, snow leopard 10.6.8 and have pre-installed Ruby 1.8.7.
I am trying to launch IRB and getting the following, not sure how to
install IRB or if I have to do a complete install from source, any help
is appreciated. My book says I should see something like the following
Last login: Sat Mar 1 10:27:50 on ttys000
unknown0019e301082d:~ drewbennett$ ruby -v
ruby 1.8.7 (2012-02-08 patchlevel 358) [universal-darwin10.0]
unknown0019e301082d:~ drewbennett$ irb