!/usr/bin/python

get subprocess module

import subprocess

call date command ##

p = subprocess.Popen("date", stdout=subprocess.PIPE, shell=True)

Talk with date command i.e. read data from stdout and stderr. Store this info in tuple

Interact with process: Send data to stdin. Read data from stdout and stderr,

until end-of-file is reached.Wait for process to terminate. The optional input

argument should be a string to be sent to the child process, or None,

if no data should be sent to the child. ##

(output, err) = p.communicate()

Wait for date to terminate. Get return returncode ##

p_status = p.wait()
print "Command output : ", output
print "Command exit status/return code : ", p_status

from: http://www.cyberciti.biz/faq/python-run-external-command-and-get-output/

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