title: How can I inherit module in ruby script?
body: <p>I have a hierarchy like </p>
  
  <p>ABC(Folder) ---->  abc.rb, def.rb</p>
  
  <p>DEF(Folder) ---->  a1.rb, b1.rb</p>
  
  <p>GHI(Folder) ---->  x1.rb, y1.rb</p>
  
  <p>I want to inherit/include def.rb, which is a module into abc.rb and then a1 should inherit abc.rb and should be able to access all methods defined in def.rb.</p>
  
  <p>Right now, I am including def.rb in every script file, but I don't want to do this. I just want to inherit vertically.</p>