title: uncomment line in script
body: <p>I want to uncomment a line using a bash script. Usually I use a perl command to replace text, but in this case this doesn't work:</p>
  
  <pre><code>perl -pi -e "s[# %wheel ALL=(ALL) NOPASSWD: ALL][%wheel ALL=(ALL) NOPASSWD: ALL]g" /mnt/etc/sudoers
  </code></pre>
  
  <p>Thanks in advance.</p>