Ruby

Install and manage Ruby locally (Windows, macOS, Linux) using installers or version managers; use Bundler for dependencies.

🧾 Overview

Ruby is used for bots, APIs (Sinatra), and full frameworks (Rails). Local installation lets you manage gems and test before deploying.

Ruby Programming Languagewww.ruby-lang.org

Bundler: The best way to manage a Ruby application's gemsbundler.io

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📥 Installation (choose one)

🪟 Windows

1

Download the latest Ruby+Devkit (x64) from https://rubyinstaller.org/downloads/

2

Run installer (enable MSYS2 when prompted).

3

Let post-install script finish (toolchain setup).

4

Verify & install bundler

ruby -v
gem -v
gem install bundler
bundler -v

5

Initialize project (optional)

bundle init
bundle install

🐧 Linux

🍎 macOS

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✅ Verification

ruby -v
gem -v
bundler -v

All commands should output versions.

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💎 Managing Gems

1

Initialize

bundle init

2

Add to Gemfile

gem "httparty"

3

Install / update

bundle install
bundle update httparty

4

Run script with locked environment

bundle exec ruby app.rb

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🔄 Updating

Target	Command
Ruby (rbenv)	rbenv install <version> && rbenv global <version>
All gems	bundle update
One gem	bundle update <name>
Bundler	gem install bundler

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🗃 Common Commands

gem list
gem install <name>
gem uninstall <name>
bundle init
bundle install
bundle update
bundle exec ruby main.rb