How do I manage multiple versions of Ruby?

Can I have multiple versions of Ruby installed?

Now, finally, after getting everything setup, this is how you can easily change between versions of Rails . Simply change to a new version of Ruby , install the version of Rails you want, and that’s it!

How do I switch between Ruby versions in Windows?

Execute the uru ls command and check that ruby is registered in uru. Execute the uru 2410p364 command to switch to this ruby 2.4. 10. Execute the ruby -v command to check if the ruby version has changed.

How do I use a specific version of Ruby?

Selecting a version of Ruby

You’ll need to install bundler 1.2. x or above to use the ruby keyword and bundler 1.13. x or above to use a Ruby version specifier. You can use the ruby keyword in your app’s Gemfile to specify a specific version of Ruby.

How do I install an older version of Ruby?

Use the secure installation method. Read the installation instructions — you probably want the single-user configuration. Use rvm list known to list available Rubies and then run rvm install x.x.x to install a specific version. Use rvm use x.x.x –default to change your default Ruby.

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How do I downgrade Ruby Version?

As others have mentioned, its hard to come up with exact solution, in general to downgrade or switch versions for a user:

  1. Install Ruby 1.8.7 (or locate it on your system if you have it already)
  2. Edit your .bash_profile or .bashrc file to update your $PATH so that the 1.8.7 executable is found first. …
  3. 7/bin/ruby.


Which Ruby version should I use?

Well the very obvious answer would be use the latest and stable version of Ruby. Considering your requests and vision for Ruby, Rails that are being up-grading process suggest to go the latest version of Ruby.

How do I install multiple Ruby versions on Windows?

If you’re trying to run multiple Ruby versions on Windows you should give uru a try.

  1. Step 1: Install uru. First, download and install uru. …
  2. Step 2: Install Ruby. …
  3. Step 3: ​Register your Ruby Installations with uru. …
  4. Step 4: Install Ruby Windows DevKit. …
  5. Step 5: Enjoy Hacking in Ruby.


How do I uninstall Ruby from Windows?

Control Panel > Programs and Features > Uninstall any Ruby Installer apps listed. Delete the Windows folders where installed.

How do I update JRuby?

2 Answers. Mostly all you need to do is reinstall gems on the newly-unpacked JRuby (recommended), or migrate your existing gem installs by copying the lib/ruby/gems/* over to the new location. There’s no automated update tool for JRuby itself right now. Add a list of required Gems to your Gemfile.

How do I change RVM to Ruby version?

Examples of using RVM

  1. RVM version. …
  2. Use a particular Ruby. …
  3. List Ruby interpreters available for installation. …
  4. List Ruby interpreters you’ve already installed. …
  5. Equivalent to “rvm use 2.1.1”, due to defaults. …
  6. Switch to the system user gems directory. …
  7. Use the user set default ruby. …
  8. Use the system ruby (as if no rvm)
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What is Ruby version file?

Many Ruby (or Rails) projects will include a simple .ruby-version file, which simply specifies a version number, for example: 2.4.2. Popular tools to help you manage your Ruby version are: Ruby Version Manager (RVM) rbenv.

How do I check the default version of Ruby?

do an “rvm list” to see which Ruby versions you have installed.

How do I run a Ruby script?

Run a script

  1. Press Ctrl twice to invoke the Run Anything popup.
  2. Type the ruby script. rb command and press Enter . …
  3. (Optional) To run scratch files or scripts outside the project root, hold down the Alt key before running the command (in this case, the dialog title is changed to Run in Context ).


What’s the latest version of Ruby?

Ruby on Rails

Original author(s) David Heinemeier Hansson
Stable release / 5 May 2021
Written in Ruby
Size 57.8 MB

How do I install Ruby version?

Follow the steps given below for installing Ruby on Rails.

  1. Step 1: Check Ruby Version. First, check if you already have Ruby installed. …
  2. Step 2: Install Ruby. …
  3. Step 3: Install Rails. …
  4. Step 4: Check Rails Version. …
  5. Step 1: Install Prerequisite Dependencies. …
  6. Step 2: Install rbenv. …
  7. Step 3: Install Ruby. …
  8. Step 4: Install Rails.
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