title: total size of group of files selected with 'find'
body: <p>For instance, I have a large filesystem that is filling up faster than I expected. So I look for what's being added:</p>
  
  <pre><code>find /rapidly_shrinking_drive/ -type f -mtime -1 -ls | less
  </code></pre>
  
  <p>And I find, well, lots of stuff. Thousands of files of six-seven types. I can single out a type and count them:</p>
  
  <pre><code>find /rapidly_shrinking_drive/ -name "*offender1*" -mtime -1 -ls | wc -l
  </code></pre>
  
  <p>but what I'd really like is to be able to get the total size on disk of these files:</p>
  
  <pre><code>find /rapidly_shrinking_drive/ -name "*offender1*" -mtime -1 | howmuchspace
  </code></pre>
  
  <p>I'm open to a Perl one-liner for this, if someone's got one, but I'm not going to use any solution that involves a multi-line script, or File::Find.</p>