title: Bash script check string for uppercase letter
body: <p>I am trying to check a string for any Uppercase letter. my code shows NO UPPER for any input, may it be "sss", "Sss", "SSS"</p>
  
  <pre><code>if [[ "$pass" =~ [^a-zA-Z0-9] ]]
  then
     echo "Upper found"
  else
     echo "no upper"
  fi
  </code></pre>