wpscan $ rbenv -v
-bash: rbenv: command not found

$ brew install rbenv ruby-build

$ rbenv -v
rbenv 1.1.2

$ rbenv install 2.6.5
$ rbenv versions
$ rbenv global 2.6.5

$ ruby -v

$ git clone https://github.com/wpscanteam/wpscan.git
$ cd wpscan
$ sudo gem install bundler
$ bundle install --without test