CODEWITHSUNDEEP
python
Gules
Gules

Reputation: 27

How can I pull a filename using when using a command line/OS in python?

I'm trying to pull a filename from the command line using OS in python. I'm searching for a file that's created at a specific time. While I can get the result I want, I can't do anything with what I get. Here' my code:

import os

file = str(os.system('ls -ltr | grep fileName | grep 09:29 | head -1'))

The result is:

-rw-r--r-- l dir dir         126649 Jun 14 09:29 fileName.011

However, when I try to strip out just the file name, I just get the whole line.
I've tried using file[-11:] without success.
I've confirmed the type of the result is a string: <type 'str'>
I've tried adding the result to a list and then splitting it, but that didn't work either.

Thank you for the help.

Upvotes: 0

Views: 58

Answers (1)

Sven Eberth
Sven Eberth

Reputation: 3115

os.system() does not return the output from the shell.

Use subprocess.check_output() for that

import subprocess
output = subprocess.check_output('ls -ltr | grep fileName | grep 09:29 | head -1', shell=True))

And then you can slice your filename from output.

Upvotes: 2

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