title: adb shell operation not permitted
body: <p>I try to run </p>
  
  <pre><code>adb shell kill 5539
  </code></pre>
  
  <p>where <code>5539</code> is a process id found when running <code>adb shell ps</code>, but I get </p>
  
  <pre><code>/system/bin/sh: kill: 5539: Operation not permitted
  </code></pre>
  
  <p>How can I rectify my permissions?</p>
  
  <p>This is the only adb documentation on kill:</p>
  
  <blockquote>
    <p>kill [options]    </p>
    
    <p>Kill all processes associated with  (the app's package name).
    This command kills only processes that are safe to kill and that will
    not impact the user experience. Options are:</p>
    
    <p>--user  | all | current: Specify user whose processes to kill; all users if not specified.</p>
  </blockquote>