On Mon, Oct 31, 2016 at 3:19 PM, Wildman via Python-list <python-list@python.org> wrote: > Here is a bash command that I want to run from a python > program: sudo grep "^user\:" /etc/shadow > > If I enter the command directly into a terminal it works > perfectly. If I run it from a python program it returns an > empty string. Below is the code I am using. Suggestions > appreciated. > > cmdlist = ["sudo", "grep", '"^$USER\:"', "/etc/shadow"] > p = subprocess.Popen(cmdlist, > stdout=subprocess.PIPE, > stderr=subprocess.PIPE) > shadow, err = p.communicate() > print shadow
Are you able to run that command without a password? sudo might be attempting to open the console, failing, and aborting the command. Is anything being printed to stderr? ChrisA -- https://mail.python.org/mailman/listinfo/python-list
