External References
===================

.. [CYGWIN] Cygwin;
   `cygwin.org <https://www.cygwin.org>`_

.. [IEEE1003] IEEE Std 1003.1(TM), 2013 Edition @ `<http://www.opengroup.org>`_;
   `IEEE Std 1003.1 <http://pubs.opengroup.org/onlinepubs/9699919799/>`_

.. [IEEE1003C412] IEEE Std 1003.1(TM), 2013 Edition; Chapter 4.12 @ `<http://www.opengroup.org>`_;
   `IEEE Std 1003.1 - Chapter 4.12 <http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap04.html>`_

.. [os] lib/os;
   `Python2 os <https://docs.python.org/2.7/library/os.html>`_,
   `Python3 os <https://docs.python.org/3.5/library/os.html>`_

.. [POSIX] IEEE Std 1003.1(TM), 2013 Edition;
   `The Opengroup <http://www.opengroup.org>`_

.. [xkcd] Profile Info;
   Randall Munroe;
   `xkcd.com <http://xkcd.com>`_ ;
   `Profile Info <http://xkcd.com/1303/>`_
