title: Is there any fast way to calculate the folder size under LNUX/UNIX
body: <p>I got a lot of folders, each folder is around 150GB. Yes, the whole storage is very large. I use the Linux command line:</p>
  
  <pre><code>for dir in `ls myfolder`
  do
      du -sh $dir &gt;&gt; statistics.log
  done
  </code></pre>
  
  <p>Very slow, it has been running for 3 days. Is there any fast way to do this?? Thanks a lot</p>