In the terminal application, you type commands and press the Return key to get things done.
Typing commands is a low-level way of working with a computer.
If you followed this guide, you should already have git installed as part of the XCode Command Line Developer Tools.
You may also want to install git separately with homebrew for easier upgrading.
(Related article: How to Install Ruby on Rails for Linux (Ubuntu)) Installing Ruby on Rails is simple, but unless you have an old Mac machine (a pre ‘08 model), you should seriously consider upgrading your system to OS X Mavericks (10.9).
It comes with the latest improvements from Apple, and it’s completely free! We need to first install Apple’s XCode Command Line Developer Tools, so that we can use the build tools and utilities that come with it to build Ruby gem native extensions and install other system packages.
Homebrew makes it much easier to get everything working. You can copy it from the web page and paste it into your terminal window at the prompt.
If you’re find that you’re not, you can set this manually.) See: Last login: Fri Feb 22 on ttys000 Mac Book-Air:~ andrew$ brew install ruby Error: ruby-1.9.3-p385 already installed To install this version, first `brew unlink ruby' Mac Book-Air:~ andrew$ ruby -v ruby 1.8.7 (2012-02-08 patchlevel 358) [universal-darwin11.0] Mac Book-Air:~ andrew$ I would suggest you use rbenv (https://github.com/sstephenson/rbenv).rbenv is simpler and lighter than RVM, plus it is friendly to your system (RVM overrides the CD and GEM commands which is somewhat worrisome).Announcement (2017-05-07): now read-only since I unfortunately do not have the time to support and maintain the forum any more.Please see rubyonrails.org/community and ruby-lang.org/en/community for other Rails- und Ruby-related community platforms. 1.8.2 on Mac OS X (Intel based) 10.4.9 I'd like to upgrade the Ruby Stack to be able to install Mongrel, which requires Ruby 1.8.4 (mini.) Has somebody already done this upgrade?This used to be a lengthy process, but if you are on Mavericks, all you have to do is to run this command in your terminal: RVM and RBENV are the two leading Ruby version managers.