title: get PID from paramiko
body: <p>I can't find a simple answer for this: I'm using paramiko to log in and execute a number of processes remotely and I need the PIDs of each process in order to check on them at later times.  There doesn't seem to be a function in paramiko to get the PID of an executed command, so I tried using the following:</p>
  
  <pre><code>stdin,stdout,stderr = ssh.exec_command('./someScript.sh &amp;;echo $!;)
  </code></pre>
  
  <p>I thought that then parsing through the stdout would return the PID, but it doesn't.  I'm assuming I should run the script in the background in order to have a PID (while it is running).  Is there a more simple, obvious, way of getting the PID?</p>