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From: Adam Mercer <ramercer@gmail.com>
Date: Thu, 8 Aug 2013 23:11:09 -0500
Subject: Using sudo to write to a file as root from a script
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Xref: csiph.com comp.lang.python:52240

Hi

I'm trying to write a script that writes some content to a file root
through sudo, but it's not working at all. I am using:

  channel = 'stable'
  config_file = '/opt/ldg/etc/channel.conf'
  command = ['echo', '-n', channel, '|', 'sudo', 'tee', config_file]
  p = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
  out, _ = p.communicate()

But it seems as if this isn't doing anything.

I just want to write the contents of the variable channel to the file
/opt/ldg/etc/channel.conf. But whatever I try just doesn't work. Can
anyone offer any pointers?

Cheers

Adam