rbenv can't change global ruby version

Question

My Mac OS X has a default ruby.

$ ruby -v
ruby 2.0.0p451 (2014-02-24 revision 45167) [universal.x86_64-darwin13]

I installed rbenv and ruby ver

Answer 1

Did you add the following lines to your ~/.bash_profile?

export PATH="$HOME/.rbenv/bin:$PATH"
eval "$(rbenv init -)"

See: https://github.com/sstephenson/rbenv#installation