Linux command-line call not returning what it should from os.system?

by

What gets returned is the return value of executing this command. What you see in while executing it directly is the output of the command in stdout. That 0 is returned means, there was no error in execution.

Use popen etc for capturing the output .

Some thing along this line:

import subprocess as sub
p = sub.Popen(['your command', 'arg1', 'arg2', ...],stdout=sub.PIPE,stderr=sub.PIPE)
output, errors = p.communicate()
print output

or 

import os
p = os.popen('command',"r")
while 1:
    line = p.readline()
    if not line: break
    print line

ON SO : Popen and python

More Related Contents:

  1. Python returns "SyntaxError: invalid syntax sys module" [closed]
  2. Sub-process in Python execute two task? [closed]
  3. Python: How to get stdout after running os.system? [duplicate]
  4. How to get PID by process name?
  5. ‘yes’ reporting error with subprocess communicate()
  6. How to make a python, command-line program autocomplete arbitrary things NOT interpreter
  7. How to pass dictionary as command line argument to Python script?
  8. Calling a python script from command line without typing “python” first
  9. How to plot a chart in the terminal
  10. Return value of x = os.system(..) [duplicate]
  11. Fetching the output of a command executed through os.system() command [duplicate]
  12. What is different between makedirs and mkdir of os?
  13. Read file with timeout in Python
  14. run a python script in terminal without the python command
  15. ImageMagick not authorized to convert PDF to an image
  16. Behavior of exec function in Python 2 and Python 3
  17. Pass input/variables to command/script over SSH using Python Paramiko
  18. os.makedirs doesn’t understand “~” in my path
  19. Python: URLError:
  20. Python: count repeated elements in the list [duplicate]
  21. What is the difference between len() and sys.getsizeof() methods in python?
  22. How to activate virtualenv in Linux?
  23. Why does Python’s multiprocessing module import __main__ when starting a new process on Windows?
  24. Understanding python subprocess.check_output’s first argument and shell=True [duplicate]
  25. Cron job: how to run a script that requires to open display?
  26. Read .doc file with python
  27. Making HTTP HEAD request with urllib2 from Python 2
  28. I want to multiply two columns in a pandas DataFrame and add the result into a new column
  29. Elegant way to perform tuple arithmetic
  30. ‘is’ operator behaves unexpectedly with floats

Leave a Comment