If you notice, I have many versions of Ruby because I have applications I have been working on that are up to five years old. However, this is not the best way to manage your Ruby versions. To check the version, simply type ruby -v. If you're working on a Mac computer, you will already have Ruby installed on your system. You will see a list of ruby versions on your computer. We are talking to another server and sending a request (to "rvm.io") to return a stable version of the code. Curl gives us the ability to make an outside communication request. The first line starts the GPG, so we can have a secure connection, while the second line of code uses a curl command. To install, go to their website at rvm.io. If you get an error message it means you do not have RVM installed. To check if you already have RVM on your computer type rvm list into your terminal. To completely uninstall rbenv, perform step (1) and then remove the rbenv root directory.In this guide, we are going to install a very important tool for Ruby and Rails development, which is the Ruby Version Manager (RVM). While disabled, rbenv will still be accessible on the command line, but your Ruby apps won't be affected by version switching. This will remove rbenv shims directory from PATH, and future invocations like ruby will execute the system Ruby version, bypassing rbenv completely. To disable rbenv managing your Ruby versions, simply comment or remove the rbenv init line from your shell startup configuration. The simplicity of rbenv makes it easy to temporarily disable it, or You can run rbenv init - for yourself to inspect the generated script. This bit is also optional, but allows rbenv and plugins to change variables in your current shell, making commands like rbenv shell possible. If this step slows down your shell startup, you can invoke rbenv init - with the -no-rehash flag. Installs shell completion for rbenv commands. This is basically the only requirement for rbenv to function properly. Prepends ~/.rbenv/shims directory to PATH. Here is what the command does when its output is eval'd:Īdds rbenv executable to PATH if necessary. This helper is part of the recommended installation instructions, but optional, as an advanced user can set up the following tasks manually. Rbenv init is a helper command to bootstrap rbenv into a shell. You can affect how rbenv operates with the following settings: nameĭefines the directory under which Ruby versions and shims reside.Ĭolon-separated list of paths searched for rbenv hooks.ĭirectory to start searching for. On macOS or Linux, we recommend installing rbenv with Homebrew. Install rbenv using one of the following approaches. On other systems, “Basic Git Checkout” might be the easiest way of ensuring that you are always installing the latest version of rbenv. On systems with Homebrew package manager, the “Using Package Managers” method is recommended. See the comparison of version managers for more details and some alternatives. The simplicity of rbenv has its benefits, but also some downsides. A different project of yours that is another directory might be using a different version of Ruby altogether-rbenv will seamlessly transition from one Ruby version to another when you switch projects.įinally, almost every aspect of rbenv's mechanism is customizable via plugins written in bash. ruby-version file in the current directory with the version that you've chosen.
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