.. include:: ../header.txt

.. _special:

Special characters
====================

:t:`Linux for Programmers and Users`, Section 3.7

.. describe:: <Cntrl-c> 

    cancel running program or partially entered commmand line

.. describe:: <Cntrl-d>

    end of file (eof)


passwd
=======

:t:`Linux for Programmers and Users`, Section 3.8

.. index:: passwd
.. program:: passwd 
.. describe:: passwd

    Change the login password.

SYNOPSIS
   :command:`passwd`

Logging Out
=============

:t:`Linux for Programmers and Users`, Section 3.9

You may log out of a shell either by typing ``exit`` or pressing 
:kbd:`<Cntrl-d>`.

The later may suprise you since :kbd:`<Cntrl-d>` sends the *end of file*
character.  However, this is consistent if you consider that when the shell is
executing a shell script, it is reading commands from a file and exits when the
eof character is detected.