How to rewrite a controller or rewrite a particular controller's action

Step2. Binding all the folder

<?xml version="1.0" encoding="UTF-8"?>
<!--
    Document   : config.xml
    Created on : Jan 7th, 2012, 3:19 PM
    Author     : V.V.N.Pradeep
    Description:
        Purpose of the document follows.

        This configuration is used to bind the all folder
        inside the Pradeep module.

        How to rewrite a controller

        Note: Don't forget to change the frontname to customer
-->
<config>
    <frontend>
        <routers>
            <pradeep>
                <use>standard</use>
                <args>
                    <module>Veera_Pradeep</module>
                    <!-- Don't forget to change the frontname to customer -->
                   <!-- <frontName>pradeep</frontName> -->
                   <frontName>customer</frontName>
                </args>
            </pradeep>
       </routers>
       <layout>
                <updates>
                    <pradeep>
                        <file>pradeep.xml</file>
                    </pradeep>
                </updates>
       </layout>
        <!-- End of layout tag -->
    </frontend>
    <global>
        <!-- This section is to bind the block with our module Pradeep -->
        <blocks>
            <pradeep>
            <class>Veera_Pradeep_Block</class>
            </pradeep>
        </blocks>
<!-- rewriting a controller -->
      <routers>
            <rewrite>
                <pradeep>
                    <from><![CDATA[#^/customer/account/create/#]]></from>
                    <to>/pradeep/account/create/</to>
                </pradeep>
            </rewrite>

                        <!-- If you want to rewrite all controller's action,
                            then below is the answer  -->
                      <!--  <rewrite>
                <pradeep>
                    <from><![CDATA[#^/customer/account/#]]></from>
                    <to>/pradeep/account/</to>
                </pradeep>
            </rewrite>
             -->   
<!--  multiple rewrite under same front end name-->

     <rewrite>
                <pradeep>
                    <from><![CDATA[#^/customer/address/#]]></from>
                    <to>/pradeep/address/</to>
                </pradeep>
     </rewrite>
    </routers>
      <!-- end of rewritting -->
        <!-- End of block-->
   </global>
</config>

/******************************/
Step3: Writng Controller
<?php
/*
 * @author  : V.V.N.Pradeep
 * @description --
 *    Purpose of the document follows.
 *  In this tutorial I am going to rewrite the
 *   http://demo.com/magento/customer/account/create action.
 *   It is not necessary to mention the sane Controller name or action name.
 *   You can give any name, but best practice is to keep the same name,
*  DS => Directory Separator
 *
 */
?>
<?php
require_once Mage::getModuleDir('controllers', 'Mage_Customer').DS.'AccountController.php';
class Veera_Pradeep_AccountController extends Mage_Customer_AccountController
{
    public function createAction()
    {
        echo "overriding customer controller's create action";
     
    }
}
?>
/******************************/

Output:

To see the output type the url into your browser

example:

http://demo.com/magento/customer/account/create/ [before rewriting check the output]
After rewriting Check the output
Enjoy............... :)