Notes on using rbenv to install a gem application without needing root

rbenv.md

Notes on using rbenv to install a gem application without needing root

I don't like running sudo gem install X - here's how I installed a gem packaged app without it.

Install rbenv using homebrew

brew install rbenv

Download Ruby 2.5.1 using it

rbenv install 2.5.1

That puts it in ~/.rbenv/versions/2.5.1/

Create a directory

mkdir /tmp/sportsdb
cd /tmp/sportsdb

Activate that version of Ruby for this directory

rbenv local 2.5.1

This creates a .ruby-version file containing 2.5.1

Use gem install to install the gem

gem install sportdb

This installs something clever in ~/.rbenv/shims/sportdb

Now I can run the command I installed

sportdb