title: How to grep any word that appears between 2 and 4 times?
body: <p>My file is:</p>
  
  <pre><code>ab  12ab 1cd uu 88 ab 33 33 1 1
  ab cd uu  88 88  33 33 33 cw ab
  </code></pre>
  
  <p>And I need to extract the words and numbers that appears 2-4 times.- {2,4}
  I've tried many regex lines and even regex101.
  I cant really put my finger on what's not working.</p>
  
  <p>this is the closest I've got so far:</p>
  
  <pre><code>egrep -o '[\w]{2,4}' A1
  </code></pre>