Server Rewrite rules [duplicate]

Possible Duplicate:

How to make parameters look more attractive

how to print the url http://abc.xyz.com/index.php?code=pqr in the http://abc.xyz.com/pqr using server RewriteRule ?

Rewriterule ^/(.*)$ index.php?code=$1

Put it in the directory of your subdomain in a file name called .htaccess