Using ruby on mac

mac-gems.md

Installing Ruby on mac

Install rbenv from brew

$ brew install rbenv

Verify rbenv is setup correctly

$ which ruby
/Users/<username>/.rbenv/shims/ruby

$ which gem
/Users/<username>/.rbenv/shims/gem

Update your .zshrc or .bashrc

# Ruby
eval "$(rbenv init -)"

Download a newer version of ruby

Mac comes with an older version of ruby, at the time of this document 2.6.0 is the latest ruby that has been released

$ rbenv install 2.6.0

Set ruby to use the newer version

$ rbenv shell 2.6.0

Completed

Now you can install gems, install newer versions of ruby, and switch versions of ruby as needed without messing with the apple permissions for the mac installed ruby

Misc Ruby commands

Update gems

$ gem update --system

Install rspec

$ gem install rspec