Ruby Hello World

Install

• apt-get install ruby2.3-tcltk

Sourcecode

• cat helloworld

require 'tk'

root = TkRoot.new { title "Hello, World!" }
TkLabel.new(root) do
   text 'Hello, World!'
   pack { padx 15 ; pady 15; side 'left' }
end
Tk.mainloop

Run

• ruby helloworld