On Mon, 31 Oct 2016 15:31:27 +1100, Chris Angelico wrote: > 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
No. The program is run in a terminal and sudo asks for a password. -- <Wildman> GNU/Linux user #557453 The cow died so I don't need your bull! -- https://mail.python.org/mailman/listinfo/python-list
