title: How to require for the second time
body: <p>Is there a way to force <code>require</code>-ing of a file for the second time? </p>
  
  <p>I am writing a library that is located in a path for Ruby. I am editing the file while doing a simple test of it in IRB.</p>
  
  <p>Each time I make a change to the file, I want to reload it without ending the IRB session. Using <code>load</code> requires typing the whole path to the file each time, and restarting IRB each time requires me to type all the other variable settings required for the simple test. </p>
  
  <p>I just want something like <code>require</code> but that allows loading for the second time. Is there a simple way to do it?</p>