title: How can I run Android camera application from adb shell?
body: <p>How can I run android camera program from adb shell?<br>
  I know that I should use am but I do not know what command should I exactly enter  </p>
  
  <p>I used this:</p>
  
  <pre><code>am start -a android.intent.action.MAIN -n com.android.camera 
  </code></pre>
  
  <p>But it didn't work!</p>