title: What is equivalent of Linux's 'free' command on FreeBSD v8.1
body: <p>What is equivalent of Linux's 'free' command on FreeBSD v8.1?</p>
  
  <p>I am calling 'free' from my application and reporting the results in my application's log file.  What would be the replacement when porting to FreeBSD v8.1?</p>
  
  <p>Here is a sample run of 'free' on Linux:</p>
  
  <pre><code>[centos4x32 ~] free
               total       used       free     shared    buffers     cached
  Mem:        774452     733044      41408          0      98040     328880
  -/+ buffers/cache:     306124     468328
  Swap:      2031608        224    2031384
  </code></pre>