How do I install and use Ruby?

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 you check Ruby is installed or not?

Use ruby -v in command prompt. if it shows the version installed on the system. then it means Ruby is installed on your system.

Is Ruby free to download?

ActiveRuby is an easy-to-install Ruby distribution, precompiled with Rails and other top gems. Download Ruby and get started for free in development. ActiveRuby Beta is currently available on Windows, but the full release will be on all major platforms (Windows, Linux and macOS).

Where are Ruby Gems installed Windows?

When you use the –user-install option, RubyGems will install the gems to a directory inside your home directory, something like ~/. gem/ruby/1.9. 1 . The commands provided by the gems you installed will end up in ~/.

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Where is Ruby installed?

By default, binaries installed by gem will be placed into: /usr/local/lib/ruby/gems/2.7. 0/bin You may want to add this to your PATH.

How do I run Ruby code?

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).

How do I open a Ruby file?

Open up IRB (which stands for Interactive Ruby).

  1. If you’re using macOS open up Terminal and type irb , then hit enter.
  2. If you’re using Linux, open up a shell and type irb and hit enter.
  3. If you’re using Windows, open Interactive Ruby from the Ruby section of your Start Menu.

How long does Ruby take to install?

Installing Ruby on Windows may take several minutes, depending on your machine. During one workshop, we waited ten minutes for all of the files to install. So be patient and let the process run. Your computer will now open up a terminal window to complete the process.

How do I know if I have Ruby Rbenv?

For more information on rbenv, check the official GitHub repository.

  1. List the installed Ruby versions. To list the installed Ruby versions in your machine with rbenv, run the following command: rbenv version. …
  2. Install a Ruby version. …
  3. Use a specific Ruby version for a project.

How do I add Ruby executable to my path?

Go to Control Panel -> System and Security -> System.

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Then click on Advanced System Setting option then under Advanced tab click on Environment Variables. Now, we have to Edit the “Path” variable under System variables so that it also contains the path to the Ruby environment.

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 install Ruby on my PC?

How to Install and Run Ruby on Windows

  1. Go to Ruby Installer in your web browser.
  2. Click the big red Download button. A list of RubyInstallers appears.
  3. Click Ruby 2.2. …
  4. Run the installer program by choosing Run Program (if Windows presents this option) or double-clicking the file when it’s done downloading.

How do I set up rails?

Rails Installation on Linux

  1. Step 1: Install Prerequisite Dependencies. First of all, we have to install git – core and some ruby dependences that help to install Ruby on Rails. …
  2. Step 2: Install rbenv. …
  3. Step 3: Install Ruby. …
  4. Step 4: Install Rails. …
  5. Step 5: Install JavaScript Runtime. …
  6. Step 6: Install Database.

Where is Ruby installed on Mac?

MacOS comes with a “system Ruby” pre-installed. If you see /usr/bin/ruby , it is the pre-installed macOS system Ruby.