How to Manage Ruby Installations Easily with RVM

1. How do I change Ruby version using RVM?
2. How do I set default RVM?
3. How do I switch between versions of Ruby?
4. What is the command to install Ruby?
5. How do I update RVM?
6. How do I change the default version of Rails?
7. How do I add Gemset to RVM?
8. How do I change Ruby version on Mac?
9. How do I downgrade Ruby Version?
10. How do I change RubyMine to Ruby?
11. How do I know what version of Ruby I have Mac?
12. How do I find my ruby path?
13. How do I run a Ruby file?
14. What is the current version of Ruby?

How do I change Ruby version using RVM?

Ruby versioning with Ruby Version Manager (RVM)

1. Install rvm. I'll refer you to the RVM installation instructions at this point to get the proper instructions for your OS. ...
2. Install another Ruby version using RVM by running: rvm install 2.4.2. Where 2.4. ...
3. You can now list the versions of Ruby that are installed by the command below: rvm list.

How do I set default RVM?

If you wish to switch back to your system ruby as default, remember that RVM does not "manage" the system ruby and is "hands off". This means to set the "system" ruby as default, you reset RVM's defaults as follows. Note that "default" is merely implemented as an alias with an especially significant name.

How do I switch between versions of Ruby?

If you choose rbenv :

1. Follow the all the installation and setup instructions.
2. Install ruby-build.
3. Run rbenv install x.x.x where x.x.x is the version (use rbenv install --list to see which ones are available.
4. Run rbenv global x.x.x to change your global Ruby version.

What is the command to install Ruby?

To install Ruby from the default Ubuntu repositories, follow these steps:

1. First, update the packages index: sudo apt update.
2. Install Ruby by typing: sudo apt install ruby-full.
3. To verify that the installation it was successful run the following command which will print the Ruby version: ruby --version.

How do I update RVM?

First of all, update your RVM installation by running rvm get stable . To make sure you're running the new RVM version, you'll then need to run rvm reload (or just open a new terminal). Once that's done, you can ask RVM to list the ruby versions available to install by running rvm list known .

How do I change the default version of Rails?

Switch --default is used for setting this version as Ruby default version. Third line install specified version in gemset (Rails 3.2. 3) on related folder.

How do I add Gemset to RVM?

Step 1: rvm gemset create [name of gemset] Step 2: rvm --rvmrc [ruby version here]@[name of gemset] # Note: You can check your current ruby version by running "ruby -v" from your console. Step 3: Refresh your directory. # You can simply do this by checking out of your directory and going back to that directory again.

How do I change Ruby version on Mac?

Here is the process I followed:

1. Check the version of Ruby installed on your Mac. Open terminal and type: ...
2. Install the Ruby Version Manager rvm. In terminal, curl -L https://get.rvm.io | bash -s stable. ...
3. Install the latest version of Ruby. rvm install ruby-[version] ...
4. Set the latest version of Ruby as the one you want to use.

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.

How do I change RubyMine to Ruby?

Here is how to switch which Ruby you use in RubyMine.

1. File → Settings (Or press Ctrl+Alt+S )
2. Select "Ruby SDK and Gems" from the left pane.
3. Switch your "Ruby interpreter".

How do I know what version of Ruby I have Mac?

Step 1: Check Ruby Version

Open the command prompt and type ruby -v. If Ruby responds, and if it shows a version number at or above 2.2. 2, then type gem --version.

How do I find my ruby path?

So, we can easily find the ruby path using :-

1. When we run then we will get like :-
2. Command: /home/rohit/.rvm/gems/ruby-2.1.10/wrappers/ruby.
3. Version: ruby 2.1.10p492 (2016-04-01 revision 54464) [x86_64-linux]
4. To use in Apache: PassengerRuby /home/rohit/.rvm/gems/ruby-2.1.10/wrappers/ruby.

How do I run a Ruby file?

Running a Script

It's easy -- just create a file with the extension . rb , navigate to that file's directory from the command line, and run it using $ ruby filename. rb (the dollar sign is just the command prompt). You'll be able to gets from and puts to the command line now!

What is the current version of Ruby?

The default current version of Ruby will remain as 2.6.