title: Recursive Node.js fs.watch on Linux
body: <p><a href="https://nodejs.org/api/fs.html#fs_caveats" rel="noreferrer">https://nodejs.org/api/fs.html#fs_caveats</a> states that <code>fs.watch(filename[, options][, listener])</code>'s recursive option is only available to OS X and Windows.</p>
  
  <p>So, how could it be implemented on Linux?</p>