title: How to get bash to ignore file-not-founds
body: <p>In a (ba)sh script, how do I ignore file-not-found errors?</p>
  
  <p>I am writing a script that reads a (partial) filename from stdin, using:</p>
  
  <pre><code>read file; $FILEDIR/$file.sh
  </code></pre>
  
  <p>I need to give the script functionality to reject filenames that don't exist.</p>
  
  <p>e.g.</p>
  
  <p><code>$UTILDIR</code> does NOT contains <code>script.sh</code>
  User types script<br>
  Script tries to access <code>$UTILDIR/script.sh</code> and fails as  </p>
  
  <pre><code>./run.sh: line 32: /utiltest/script.sh: No such file or directory
  </code></pre>
  
  <p>How do I make the script print an error, but continue the script without printing the 'normal' error?</p>