How to install Ruby on Rails on CentOS 6.4

Ruby is a dynamic, reflective, general-purpose object-oriented programming language that combines syntax inspired by Perl with Smalltalk-like features.

Before installing Ruby on our machine we have to update our system and have to install some dependency applications.

yum -y update

yum groupinstall "Development Tools"

Now we can proceed for Ruby installation
Download and install ruby as below step

cd /opt/
wget ftp://ftp.ruby-lang.org/pub/ruby/2.0/ruby-2.0.0-p247.tar.gz
tar xvzf ruby-2.0.0-p247.tar.gz
cd ruby-2.0.0-p247
./configure
make
make install

After completing the installation verify the ruby version:

ruby -v

Now we will download and install rubygem

cd /opt/
wget http://production.cf.rubygems.org/rubygems/rubygems-2.0.6.tgz
tar xvzf rubygems-2.0.6.tgz
cd rubygems-2.0.6
ruby setup.rb

Now we will ensure that we have the latest gem with us by issuing below command:

gem update --system

Output:

Latest version currently installed. Aborting.

Now we will install latest version of rails with it’s dependencies:

gem install rails

Verify the installed gems

gem list