Install Ruby and Rails on Windows

Just follow these steps to install Ruby:

1. Download the one-click installer for Ruby at http://rubyinstaller.rubyforge.org.
2. Click the installer to install Ruby.

Setting up Rails is just about as easy.

Select Start->Run. Type cmd in the Open field and click OK.
Then, type the following at the command prompt:
And that’s it! You’ve got Ruby, and you’ve got Rails.

__________________
Prasanna Vignesh
MCPD | Web Developer

Installing Ruby and Rails in Mac OS X

As of Mac OS X version 10.4 (the version called Tiger), installation is more than simple—Ruby comes built in. To check that, open the Terminal application by using Finder to go to Applications➪Utilities, double-click Terminal, and then enter ruby -v to check Ruby’s version number.

You should see a version of Ruby that’s 1.8.2 or later. If not, you’re going to have to install Ruby yourself.

The locomotive project (Locomotive) is a complete one-step install Rails environment for OS X.

Alternatively, you can download Rails yourself. To do that, you first need RubyGems, which you can
pick up by going to http://rubygems.rubyforge.org and clicking the download link. Then go to the directory containing the download in the Terminal application and enter the following at the command
prompt, updating rubygems-0.8.10.tar.gz to the most recent version of the download:

The final step is to use RubyGems to download Rails, so enter this command:

That’s it—you should be on Rails!

Ruby comes installed in Mac OS X, but it’s not really installed all that well. For
example, support for the Ruby readline library isn’t working, which means that
you could have problems if you want to use the interactive Ruby tool discussed later in this chapter. To fix the problem and install Ruby yourself, take a look at http://tech.ruby.com/entry/46.

Hope useful.

__________________
Prasanna Vignesh
MCPD | Web Developer

Installing Ruby and Rails in Linux and Unix

If you’re using Linux or Unix, you probably already have Ruby installed.


Open a shell and type ruby -v at the prompt—if you have version 1.8.2 or
later installed, you’re all set. If you don’t have Ruby installed, you can find pre-built versions for your Linux/Unix installation on the Internet, or you can build it from the source, which you can find at http:// ruby-lang.org/en.

To build Ruby from source, download ruby-1.8.4.tar.gz (change that name to the most recent version), untar the file, and build it:


You’re also going to need Rails, which is most easily installed with RubyGems. To get RubyGems, go to http://rubygems.rubyforge.org and click the download link. Then go to the directory containing the download in a shell and enter the following at the command prompt, updating rubygems-0.8.10.tar.gz to the most recent version of the download:


All that’s left is to use RubyGems to install Rails, which you can do this way:

Things very rarely go wrong with the Ruby and Rails installation process, but if there was a problem,
take a look at the online help files, starting with http://rubyinstaller.rubyforge.org/wiki/wiki.pl?RubyInstallerFAQ.

__________________
Prasanna Vignesh
MCPD | Web Developer