title: exiting the repl console with a background process
body: <p>How do you exit from the repl console in sbt with a background process running?  The following hangs:</p>
  
  <pre><code>$ sbt
  &gt; console
  Welcome to Scala version 2.9.1.final (Java HotSpot(TM) 64-Bit Server VM, Java 1.6.0_26).
  
  scala&gt; import scala.sys.process._
  import scala.sys.process._
  
  scala&gt; "sleep 10000".run
  res0: scala.sys.process.Process = scala.sys.process.ProcessImpl$SimpleProcess@67219b8c
  
  scala&gt; &lt;ctrl-d entered&gt;
  ...hangs
  </code></pre>
  
  <p>ctrl-c works, but kills sbt too.  I suppose I'm looking for a letter between ctrl-c and ctrl-d.</p>