How do I downgrade my ruby version?

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.

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 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 change the default Ruby on Mac?

Set Ruby version with rvm on Mac

THIS IS IMPORTANT:  Best answer: How do you tell if a rock has a gem in it?

To set a default Ruby version with rvm, enter rvm –default use 3.0. 0 on the command line. To switch to the system ruby, enter rvm use system . To switch back to the default, rvm default .

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 install an older version of Ruby in Termux?

2 Answers

  1. Install gawk, curl and tar packages: apt install curl gawk tar.
  2. Go to 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 downgrade Ruby from Windows?

To install another Ruby version, let’s follow these steps.

  1. Install rvm. …
  2. Install another Ruby version using RVM by running: rvm install 2.4.2. …
  3. You can now list the versions of Ruby that are installed by the command below: rvm list.

How do I check my ruby version?

“how to check ruby version” Code Answer’s

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

How do I change Ruby in RVM?

Installing any version of Ruby you wish

  1. Run the following to get a list of available versions to install: [server]$ rvm list known. …
  2. Install the exact version of Ruby you require. …
  3. You can now tell your system to use this version by default: …
  4. Check the version of Ruby to confirm it’s been updated.
THIS IS IMPORTANT:  Frequent question: Why Diamond is non conductor?

How do I manage Ruby version?

Basic command-line RVM usage can be boiled down to this set of commonly used commands:

  1. rvm install <version> installs given Ruby version on your system,
  2. rvm remove <version> removes given Ruby version from your system,
  3. rvm list lists all Ruby versions installed on your system,

How does Ruby version work?

ruby-version is read automatically, and you’re automatically switched to the correct version of Ruby before you start working. (These examples are from a MacOS machine).

How do I uninstall Ruby from my Mac?

Uninstall Ruby on Mac with rbenv

For rbenv, use rbenv versions to see which versions you have installed. Use the uninstall command to remove a version. This will remove any gems associated with the version as well. If you want to reinstall Ruby, see Install Ruby on Mac for recommendations of newer version managers.