title: sass --watch process is locking up my terminal window
body: <p>I'm working on a shell script to optimize my build process on a web/front end project.</p>
  
  <p>I'm using sass to enhance css development and the html5boilerplate build script to optimize for development.</p>
  
  <p>I'm trying to get the script to do the following.
  1. check if sass --watch is enabled, if not run</p>
  
  <pre><code>sass --watch file.scss:file.css
  </code></pre>
  
  <p>2. cd into the build folder and run ant build</p>
  
  <p>The problem is that sass --watch locks up the terminal and the script won't step into the ant build until I hit Control-C to stop sass.</p>
  
  <p>I've tried 'xterm' to spawn a new terminal window for sass, but xterm opens the X-11 app on my mac and nothing fires.</p>
  
  <p>Is there another way to open a terminal window? Is there a way to thread sass? I really want to run my script and get back to a command prompt so I can repeat my command all day and keep the build process running smoothly.</p>