List the Environment Variables of a Process
===========================================

Author: Momchil Ivanov <momchil@xaxo.eu>
Date  : 2013.12.07

Introduction
------------

  This articles describes how to list the environment variables of a
  running process.

Method 1
--------

  To list the environment variables of the running process with
  process id specified as <PID>, execute:

    $ ps -eww <PID>

  This method works on the operating systems GNU/Linux and
  FreeBSD.

Method 2
--------

  Execute:

    $ cat /proc/<PID>/environ

  For a human readable format execute:

    $ xargs --null --max-args=1 echo < /proc/<PID>/environ

  This method works on the operating system GNU/Linux.


Additional information
----------------------

  For obtaining additional information on a running check the program
  procenv [1,2].

References
----------

  1: http://ifdeflinux.blogspot.de/2012/10/procenv-and-process-environment.html
  2: https://launchpad.net/procenv