From Fedora Project Wiki
This Cookbook will get you started with installing Ruby, and creating simple "Hello, World" projects with some popular frameworks such as Ruby on Rails, Shoes, Sinatra, and others.
This cookbook is based off of a factory-fresh Fedora 18 (Beta) release.
Getting Started
First off, we'll install Ruby. Open a terminal (by going to Applications -> System -> Terminal) and type the following:
sudo yum install ruby
Type in your password. Now you should see something like this:
Loaded plugins: langpacks, presto, refresh-packagekit Resolving Dependencies --> Running transaction check ---> Package ruby.x86_64 0:1.9.3.327-22.fc18 will be installed --> Processing Dependency: ruby-libs(x86-64) = 1.9.3.327-22.fc18 for package: ruby-1.9.3.327-22.fc18.x86_64 --> Processing Dependency: rubygem(bigdecimal) >= 1.1.0 for package: ruby-1.9.3.327-22.fc18.x86_64 --> Processing Dependency: ruby(rubygems) >= 1.8.23 for package: ruby-1.9.3.327-22.fc18.x86_64 --> Processing Dependency: libruby.so.1.9()(64bit) for package: ruby-1.9.3.327-22.fc18.x86_64 --> Running transaction check ---> Package ruby-libs.x86_64 0:1.9.3.327-22.fc18 will be installed --> Processing Dependency: libyaml-0.so.2()(64bit) for package: ruby-libs-1.9.3.327-22.fc18.x86_64 ---> Package rubygem-bigdecimal.x86_64 0:1.1.0-22.fc18 will be installed ---> Package rubygems.noarch 0:1.8.24-3.fc18 will be installed --> Processing Dependency: rubygem(rdoc) >= 3.9.4 for package: rubygems-1.8.24-3.fc18.noarch --> Processing Dependency: rubygem(io-console) >= 0.3 for package: rubygems-1.8.24-3.fc18.noarch --> Running transaction check ---> Package libyaml.x86_64 0:0.1.4-3.fc18 will be installed ---> Package rubygem-io-console.x86_64 0:0.3-22.fc18 will be installed ---> Package rubygem-rdoc.noarch 0:3.12-5.fc18 will be installed --> Processing Dependency: rubygem(json) < 2 for package: rubygem-rdoc-3.12-5.fc18.noarch --> Processing Dependency: rubygem(json) >= 1.4 for package: rubygem-rdoc-3.12-5.fc18.noarch --> Processing Dependency: ruby(irb) for package: rubygem-rdoc-3.12-5.fc18.noarch --> Running transaction check ---> Package ruby-irb.noarch 0:1.9.3.327-22.fc18 will be installed ---> Package rubygem-json.x86_64 0:1.6.5-2.fc18 will be installed --> Finished Dependency Resolution Dependencies Resolved ================================================================================ Package Arch Version Repository Size ================================================================================ Installing: ruby x86_64 1.9.3.327-22.fc18 fedora 61 k Installing for dependencies: libyaml x86_64 0.1.4-3.fc18 fedora 54 k ruby-irb noarch 1.9.3.327-22.fc18 fedora 73 k ruby-libs x86_64 1.9.3.327-22.fc18 fedora 2.6 M rubygem-bigdecimal x86_64 1.1.0-22.fc18 fedora 71 k rubygem-io-console x86_64 0.3-22.fc18 fedora 43 k rubygem-json x86_64 1.6.5-2.fc18 fedora 470 k rubygem-rdoc noarch 3.12-5.fc18 fedora 218 k rubygems noarch 1.8.24-3.fc18 fedora 174 k Transaction Summary ================================================================================ Install 1 Package (+8 Dependent packages) Total download size: 3.8 M Installed size: 12 M Is this ok [y/N]:
Type y, then press enter.
You should start seeing something like this now:
Downloading Packages: -------------------------------------------------------------------------------- Total 82 kB/s | 3.8 MB 00:47 Running Transaction Check Running Transaction Test Transaction Test Succeeded Running Transaction Installing : libyaml-0.1.4-3.fc18.x86_64 1/9 Installing : ruby-libs-1.9.3.327-22.fc18.x86_64 2/9 Installing : ruby-irb-1.9.3.327-22.fc18.noarch 3/9 Installing : rubygem-json-1.6.5-2.fc18.x86_64 4/9 Installing : rubygem-io-console-0.3-22.fc18.x86_64 5/9 Installing : rubygem-bigdecimal-1.1.0-22.fc18.x86_64 6/9 Installing : rubygem-rdoc-3.12-5.fc18.noarch 7/9 Installing : rubygems-1.8.24-3.fc18.noarch 8/9 Installing : ruby-1.9.3.327-22.fc18.x86_64 9/9 Verifying : libyaml-0.1.4-3.fc18.x86_64 1/9 Verifying : rubygem-json-1.6.5-2.fc18.x86_64 2/9 Verifying : ruby-irb-1.9.3.327-22.fc18.noarch 3/9 Verifying : rubygem-io-console-0.3-22.fc18.x86_64 4/9 Verifying : rubygem-bigdecimal-1.1.0-22.fc18.x86_64 5/9 Verifying : ruby-libs-1.9.3.327-22.fc18.x86_64 6/9 Verifying : rubygem-rdoc-3.12-5.fc18.noarch 7/9 Verifying : rubygems-1.8.24-3.fc18.noarch 8/9 Verifying : ruby-1.9.3.327-22.fc18.x86_64 9/9 Installed: ruby.x86_64 0:1.9.3.327-22.fc18 Dependency Installed: libyaml.x86_64 0:0.1.4-3.fc18 ruby-irb.noarch 0:1.9.3.327-22.fc18 ruby-libs.x86_64 0:1.9.3.327-22.fc18 rubygem-bigdecimal.x86_64 0:1.1.0-22.fc18 rubygem-io-console.x86_64 0:0.3-22.fc18 rubygem-json.x86_64 0:1.6.5-2.fc18 rubygem-rdoc.noarch 0:3.12-5.fc18 rubygems.noarch 0:1.8.24-3.fc18 Complete!