title: Howto Exit swift-language terminal mode
body: <p>I'm having problems about how to exit the swift-language's terminal mode.
  I type swift in terminal on my Mac Air (Yosemite),
  And I got to swift's terminal mode,, something similar to python's.</p>
  
  <p>But in python i can use quit() to exit that mode.
  However, in swift,, I didn't find such a method..</p>
  
  <p>So I exit the whole terminal by 'command + q'..</p>
  
  <p>Then, I got gabbage like these:</p>
  
  <pre><code>      20282   0.0  0.0        0      0   ??  Z     8:14PM   0:00.00 (repl_swift)
        20372   0.0  0.0  2441988    652 s000  S+    8:30PM   0:00.00 grep swift
        20168   0.0  0.0        0      0   ??  Z     8:00PM   0:00.00 (repl_swift)
  </code></pre>
  
  <p>What's worse,,, even kill -9  can't kill the repl_swift process.</p>
  
  <p>I guess the only thing I can do is reboot now..
  But really curious why~~ Is the swift-terminal mode still in beta version? :)</p>