Install Ruby On Windows or Linux

I.  Ruby Overview

RubyInstaller

II. Install Ruby

• In Windows
  Download and Install
  • Download rubyinstaller
  • Double click rubyinstaller.exe to install.
  Run
  • Finished, go to run -> cmd -> irb or run Interactive Ruby
• In Linux
  Install with yum
  • # yum install ruby
  Install other way
  • $ rpm -ivh install wget #Install wget for download package from internet
  • $ cd /tmp
  • $ wget > <source> /ruby-2.x.x #Download ruby from internet
  • $ rpm -ivh install ruby-2.x.x or $ yum install ruby-2.x.x
  Run
  • Finished, go to Terminal and enter irb

III. Test install

$ ruby -v

$ ruby -e "puts  'Hello World! '"

IV. More

Similar man command in shell, in ruby using ri command :

  # using ri command 
$ ri puts  # press q to quit 

Using Editor:

• # In Windows notepad++, RubyWin,...
• # In Linux vim, gedit, ...

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