Show All Product link to product list page in magento

To show "view all" product link in product list page than first of all goto backend

System->Configuration->Catalog->Frontend

enable Allow All Products per Page.

and than open app\design\frontend\base\default\template\page\html\pager.phtml

add this code to as you where display in page.

<?php 
$url = $this -> getLimitUrl('all');
echo 'View All';
?>