[Tutor] Correct way to call an outside program?
linuxian iandsd
pylinuxian at gmail.com
Thu Mar 13 13:31:32 CET 2008
simplest way to run external commands !
import os
cmd="/usr/bin/ssh 10.0.0.20 uptime"
os.popen(cmd)
my cmd is just an example, use any cmd you want & its output will be
displayed to you.
hope this helps
On Thu, Mar 13, 2008 at 12:05 PM, Kent Johnson <kent37 at tds.net> wrote:
> Allen Fowler wrote:
> > Hello,
> >
> > I need to call an external command line .exe utility from my Python
> script.
> >
> > What is the best way to capture the output (if any) and (optionally)
> direct it to my normal standard output?
>
> subprocess.Popen().communicate() will do it:
>
> In [1]: import subprocess
> In [7]: x=subprocess.Popen('ls', stdout=subprocess.PIPE,
> stderr=subprocess.PIPE).communicate()
> In [10]: print x[0]
> ...
>
> If you just want stdout and stderr of the subprocess to go to stdout and
> stderr of the calling process you can omit those arguments to Popen().
>
> Kent
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