So i installed rbenv according to the github directions. I am running OSX but i have tried this on a Ubuntu 12.04 VM and got the same results. The following is what i get in my terminal when i try to change ruby versions: rbenv versions * 1.9.3-p0 (set by /Users/user/.rbenv/version) 1.9.3-p125 rbenv global 1.9.3-p0 rbenv rehash ruby -v ruby 1.8.7 (2011-12-28 patchlevel 357) [universal-darwin11.0] which ruby /usr/bin/ruby Anyone have any ideas as to why rbenv isnt actually switching the ruby version like it thinks it is? Aslo there is no .rbenv file in the local directory that would be causing the ruby version to default to 1.8.7 rbenv local rbenv: no local version configured for this directory