title: Bash syntax error in CIS document
body: <p>I'm working on implementing changes as required by CIS standards for section 9.1.12 (CentOS 6.)  The following command returns a syntax error:</p>
  
  <pre><code>df --local -P | awk {'if (NR!=1) print $6'} | xargs -I '{}' find '{}' -xdev -group -ls
  </code></pre>
  
  <p>The error I get is:</p>
  
  <pre><code>find: `-ls' is not the name of an existing group
  find: `-ls' is not the name of an existing group
  find: `-ls' is not the name of an existing group
  </code></pre>
  
  <p>Can someone please tell me what is wrong with this syntax?  The point is to find and print un-grouped files and directories.  Thanks in advance.</p>