title: How could I write an egrep command that will find all entries that have least 5 consecutive vowels (aeiou) in them upper or lower case?
body: <p>I'm looking for an answer that doesnt include -i option to get both upper and lowercase. Specifically just how to make the regular expression itself output such a string. </p>
  
  <p>I also do not want it to return any other strings outside of the consecutive "aeiou". For example I want to see:</p>
  
  <p>aeiou
  AEIOU
  AeIou
  daeiou
  aeioud</p>
  
  <p>etc.</p>
  
  <p>I do not want to see:
  AAAAA
  aeiou
  AEIOU
  AeIou
  daeiou
  aeioud
  AEODN
  EEEEE
  eaeee</p>
  
  <p>when I do grep -E '[aeiou-AEIOU]{5,} it is still giving me additional strings like the ones above I do not want to see. Any ideas??</p>