rbenv - How to get newer version of Ruby into gem environment -

i've installed ruby 2.2.2 rbenv. when run

gem env

it says using 2.0.0. read on different question run

sudo gem install -n /usr/local/bin --no-ri --no-rdoc bundler rbenv rehash bundle --path=vendor/bundle

however, when running last line, receive error:

could not locate gemfile or .bundle/ directory

how system use ruby 2.2.2?

edit: printed out contents of .bash_profile , had following 2 lines:

export path export path="$home/.rbenv/bin:$path"

is bad there blank export path? if so, how remove it?

if have ruby 2.2.2 installed already, can use renv global

rbenv global 2.2.2

check out documentation here.

M16