title: Redirect stdin of powershell script to subprocess
body: <p>In my scenario, I have a powershell script that receives standard input. What I would like to do is start a subprocess using an arbitrary command line and redirect the standard input from the powershell script to the subprocess. In other words, I simply want to pass down the standard input to the subprocess.</p>
  
  <p>I have a few ideas on how to do this with loops, but is there a more elegant way?</p>