Your question: How do I install an older version of Ruby?

How do I install a specific version of Ruby?

Get started with rbenv

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. To install a new Ruby version, use the rbenv install command: rbenv install VERSION. …
3. Use a specific Ruby version for a project.

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 can I use an older version of Ruby?

To use any of the versions, simply type rvm <version> or rvm use <version> and to know which Ruby you are currently using type the command below. You should now see the Ruby version you chose previously.

How do I install the lower 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.

How do I install an old Ruby on Termux?

2 Answers

1. Install gawk, curl and tar packages: apt install curl gawk tar.
2. Go to rvm.io site and just copy ‘Install RVM’ command, look’ like: …
3. Add this line [[ -s “$HOME/.rvm/scripts/rvm” ]] && . “$ …
4. Now your shell must writing a syntax PS problem, just open rvm script and edit it:

How do I uninstall a specific version of a gem?

Removing a specific gem

1. sudo gem uninstall GEMNAME.
2. sudo gem uninstall GEMNAME –version 1.1.0.
3. sudo gem cleanup GEMNAME.
4. sudo gem cleanup.

How do I downgrade Rails version?

How to downgrade my rails version?

1. I opened command prompt.
2. I typed gem uninstall rails.
3. Some options came for rails version then I selected my current version and pressed entered.
4. Then typed gem install rails -v 3.2. …
5. I went to my Site directory and typed rails new blog.

How do I use multiple versions of Ruby?

Using rbenv To Manage Multiple Ruby Versions

1. Install. Upgrade or install ruby-build: …
2. Add Ons. The plugin rbenv-bundler makes it possible to not have to type bundle exec in front of every command. …
3. Check Local Versions. …
4. Check Installable Versions. …
5. Install A Ruby. …
6. Use The Ruby.

How do I check my ruby version?

“how to check ruby version” Code Answer’s

1. // Command line:
2. $ ruby -v.
3. ​
4. // Within irb type “RUBY_VERSION”
5. # => “2.4.1”
6. ​
7. // If using RVM:
8. $ rvm current.

How do I change the project version in Ruby?

The command rbenv local 3.0. 0 sets the . ruby-version file within any project directory. Changing into the directory will automatically switch Ruby.

How do I update my ruby version?

Ruby versions (updating)

1. Upgrade ruby (using rvm) sudo rvm get head. …
2. Install bundler. gem install bundler.
3. Go to application root directory and install gems. cd APPLICATION_ROOT. …
4. Install Easy Redmine. rake easyproject:install RAILS_ENV=production.
5. You may also need to change the ruby version in a startup script.

How do I download and install Ruby?

Installing Ruby Using the RubyInstaller Tool

1. Step 1: Download the RubyInstaller Tool. Use a web browser to navigate to the Download page (linked above). …
2. Step 2: Run the Ruby Installer. Browse to the location of the RubyInstaller tool, and double-click. …
3. Step 3: Verify the Ruby Installation.

How do I install a specific version of a gem?

Use `gem install -v`

You may already be familiar with gem install , but if you add the -v flag, you can specify the version of the gem to install. Using -v you can specify an exact version or use version comparators.

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.

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.