Python awkward bash string export Bug

Question

I've a problem recently, that Im not really capable to solve..

Here is a script

!/bin/bash

ifconfig | grep -Eo 'inet (addr:)?([0-9]*\.){3}[0-9]*' | grep -Eo '([0-9]*\.){3}[0-9]*' | grep -v '127.0.0.1'

The export will be simply your own IP Address

192.168.2.1

So far so good but then I go in Python and write

str(os.system("./GrabOwnIP.sh"))

I'll get a different output

192.168.2.1

0

I just want a variable thats keeping this information itself but then I write

OWNIP = str(os.system("./GrabOwnIP.sh"))

Then it will just give me

0

I also tried to use the line from the bash script itself in the Python one but the same results occured

What does this have to do with `export`? `export` is for creating environment variables that are inherited by child processes. Your question is about output, not export. — Barmar, Jun 14 '18 at 22:16

score 0 · Accepted Answer · answered Jun 14 '18 at 21:54

0

os.system() returns the exit code. Use subprocess.check_output to capture the standard output of the command.

answered Jun 14 '18 at 21:54

choroba

1 Answers1