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    You are at:Home»Programming»Ruby»How to Install Ruby on CentOS/RHEL 7/6

    How to Install Ruby on CentOS/RHEL 7/6

    By RahulApril 3, 20203 Mins Read

    How to Install Ruby on CentOS/RHEL 7/6 . Ruby is a dynamic, object-oriented programming language focused on simplicity and productivity. RVM (Ruby Version Manager) is a tool for installing and managing multiple Ruby versions on single operating systems. This tutorial will help you to install RVM on your system. After that install the latest Ruby on CentOS and RedHat systems using RVM.

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    Step 1 – Installing Requirements

    First of all, you need to install all required packages for ruby installation on our system using the following command.

    yum install gcc-c++ patch readline readline-devel zlib zlib-devel libffi-devel \
     openssl-devel make bzip2 autoconf automake libtool bison sqlite-devel
    

    Step 2 – Install RVM

    Now, install the latest stable version of RVM on your system using the following command. This command will automatically download all required files and install them on your system.

    curl -sSL https://rvm.io/mpapis.asc | gpg2 --import -
    curl -sSL https://rvm.io/pkuczynski.asc | gpg2 --import -
    

    After that install the latest stable RVM version on your system.

    curl -L get.rvm.io | bash -s stable
    

    Once the installation finished, run below command to load the RVM environment.

    source /etc/profile.d/rvm.sh
    rvm reload
    

    Step 3 – Verify Dependencies

    Now use the following command to verify all dependencies are properly installed. This will install any missing dependencies on your system.

    rvm requirements run
    
    Checking requirements for centos.
    Requirements installation successful.
    

    Step 4 – Install Ruby on CentOS

    Now, your system is ready for the Ruby installation. You can find the available Ruby version for installation using the below command.

    rvm list known
    

    Then install the required Ruby version on your system. Here, I am installing Ruby 2.7 on my CentOS system. You can simply replace the version to below command of your choice and install.

    rvm install 2.7
    

    Step 5 – Setup Default Ruby Version

    First of all, check the currently installed ruby versions on your system. So that we can find which version is using currently by the system and which is set to default.

    rvm list 
    
       ruby-2.4.4 [ x86_64 ]
     * ruby-2.5.1 [ x86_64 ]
    => ruby-2.7.0 [ x86_64 ]
    
    # => - current
    # =* - current && default
    #  * - default
    

    After that use rvm command to set up the default ruby version to be used by applications.

    rvm use 2.7 --default
    
    Using /usr/local/rvm/gems/ruby-2.7.0
    

    Step 6 – Verify Active Ruby Version

    Using the following command you can check the currently active ruby version.

    ruby --version
    
    ruby 2.7.0p0 (2019-12-25 revision 647ee6f091) [x86_64-linux]
    

    Congratulation’s, Finally you have successfully installed Ruby on your system. Read our next articles to deploy Ruby with Apache or Ruby with Nginx web server with simple steps.

    References:
    1. http://rvm.io/rubies/installing

    install ruby ROR ruby Ruby on Rails ruby stable install ruby-lang
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    View 18 Comments

    18 Comments

    1. suresh on August 12, 2020 10:49 am

      flawless instructions. Thanks.
      Worked without any issues

      Reply
    2. Aaron Reid on May 23, 2020 4:23 pm

      best instructions I have seen yet and worked like a charm, thanks!

      Reply
    3. xxj on March 18, 2020 8:14 am

      I think “ibffi-devel” should be “libffi-devel”.

      Reply
    4. Vasiliy on February 20, 2020 4:09 am

      Thank you man!

      Reply
    5. Rick on September 11, 2019 2:46 pm

      So good

      Reply
    6. Roman on June 13, 2019 6:50 am

      Nice instruction! Thanks!

      Reply
    7. Neo on June 12, 2019 6:34 pm

      Thank you so much for these precise instructions!
      Worked like a charm 🙂

      Reply
    8. Ram on June 3, 2019 9:11 pm

      Thanks

      Reply
    9. Alysson Vicuña on January 8, 2019 11:50 am

      Thx! Congratulations for your post! This post resolve my problem.

      Reply
    10. PhilS on October 21, 2018 1:39 am

      Spot on. Thanks for this post man. Been a while since I have used Cent so this was very helpful.

      Reply
    11. Manal Shaikh on October 7, 2018 9:02 am

      Thank you so much for this tutorial.

      Reply
    12. Eric on August 28, 2018 8:53 pm

      This guide is better than the one in the Ruby website.

      Reply
    13. kirby on July 27, 2018 7:42 pm

      It really works! Thank you!

      Reply
    14. IC on June 24, 2018 12:41 pm

      Thanks!
      How can I generally “ruby install latest”?

      Reply
    15. Shyam on May 1, 2018 3:05 am

      Thank you for the detailed info. it was such a hassle to update ruby; your steps helped to quickly update without any errors.

      Reply
    16. SBA on December 7, 2017 10:25 am

      In my case (CentOS 7.2), the /etc/profile/rvm.sh was not created by the automated installer.
      It was just added to my user home .profile file. (/home/myUser/.profile).
      So the command became, source /home/myUser/.profile.

      Reply
    17. Jim on November 16, 2017 4:56 pm

      Appreciate the time spent on this. Thanks Rahul!

      Reply
    18. David on May 2, 2017 5:38 pm

      Thank you so much!

      I had been running Ruby 1.8.7 (the default) on CentOs 6.9.

      I followed your instructions exactly, and it worked flawlessly. I am now running Ruby 2.4 and my Ruby programs are working! Thank you so much.

      Reply

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