CODEWITHSUNDEEP
pythonsubprocess
ssb
ssb

Reputation: 7502

Subprocess in Python

I want the output of the jobs command run in the shell as a string in python.

I have this code

import subprocess
p1 = subprocess.Popen(['jobs'], shell=True, stdout=subprocess.PIPE)
print  p1.communicate()

But this doesnt seem to work. The output I get is -

('', None)

How do I fix this?

Upvotes: 0

Views: 403

Answers (1)

RanRag
RanRag

Reputation: 49567

You can use subprocess.check_output:

In [5]: import subprocess

In [6]: output = subprocess.check_output("ps")

In [7]: print output
  PID TTY          TIME CMD
 2314 pts/2    00:00:06 bash
 4084 pts/2    00:00:03 mpdas
 7315 pts/2    00:00:02 python
 7399 pts/2    00:00:00 ps


In [8]:

Your code works fine for me.

In [11]: import subprocess

In [12]: p1 = subprocess.Popen(['ps'], stdout=subprocess.PIPE)

In [13]: print  p1.communicate()[0]
  PID TTY          TIME CMD
 2314 pts/2    00:00:06 bash
 4084 pts/2    00:00:03 mpdas
 7315 pts/2    00:00:02 python
 7682 pts/2    00:00:00 ps


In [14]:

Upvotes: 1

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