# exenv > Easily install Elixir versions and manage application environments. > More information: . - Display a list of installed versions: `exenv versions` - Use a specific version of Elixir across the whole system: `exenv global {{version}}` - Use a specific version of Elixir for the current application/project directory: `exenv local {{version}}` - Show the currently selected Elixir version: `exenv {{version}}` - Install a version of Elixir (requires `elixir-build` plugin ): `exenv install {{version}}`