title: Store the output of Subprocess.call in a String
body: <p>I am trying to hit a unix command through python code.But when I am using the subprocess.call function it is directly poping the result.
  I want to store that result into a string.
  Below is my code sample.</p>
  
  <pre><code>import subprocess
  Store_result=subprocess.call("grep 'xyz-pqr' textfile_5906.txt",shell=True)
  print Store_result
  </code></pre>
  
  <p><strong>#This returns me 0</strong></p>
  
  <p>I want to store the result in one string and use it for further coding.</p>