IRB run it normal or as administrator and getting this result.
might have duplicated this post, first time posting on the group did not
see where my post is :)
irb(main):001:0> mkdir lesson2
NameError: undefined local variable or method `lesson2' for main:Object
from C:/RailsInstaller/Ruby1.9.3/bin/irb:12:in `<main>'
irb(main):002:0> cd lesson
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