title: Bash script to sum absolute values?
body: <p>Is it possible to sum absolute values for integers entered into stdin and print the result to stdout?</p>
  
  <p>So far I have is this:</p>
  
  <pre><code>read X
  read Y
  echo "$(($X+$Y))"
  </code></pre>
  
  <p>Can return:</p>
  
  <pre><code>11
  11
  22
  </code></pre>
  
  <p>But looking to get a result for absolutes. E.g:</p>
  
  <pre><code>-11
  11
  22
  </code></pre>