How to use RVM - Ruby Version Manager

• Install a ruby version
• Create a gemset for a specific project or environment
• Use the gemset whenever you CD into the folder
• Get the GEM_HOME environment variable
• Get the GET_PATH environment variable
• Migrate from .rvmrc to .ruby-version it’s faster and recommended
• Docs

Install a ruby version

rvm install 3.2.0

Create a gemset for a specific project (or environment)

rvm 3.2.0@project-name --create

Use gemset:

rvm use 3.2.0@project-name

Use the gemset whenever you CD into the folder

1. Add the following to your $HOME/.rvmrc:

   export rvm_project_rvmrc=1
   

2. Create the files in your project root directory: .ruby-version and .ruby-gemset.

   Run:

   rvm --ruby-version use 3.2.0@project-name
   

   Gemsets are not supported by other tools, that’s why rvm recommends to use separate file (.ruby-gemset).

3. Create Gemfile:

   gem install bundler
   bundler init
   

Get the GEM_HOME environment variable

This variable points to the place where gems will be installed.

rvm gemdir

Get the GET_PATH environment variable

This variable points to the places where Ruby will look for gems.

echo $GEM_PATH

Migrate from .rvmrc to .ruby-version (it’s faster and recommended)

rvm rvmrc to ruby-version

Docs

• Typical RVM project workflow: https://rvm.io/workflow/projects