change routing codeigniter

I deleted my solution as i got your question wrong way.Please elaborate what you meant by wordpress url way because it uses various url structure that for pages it uses direct url else under specified categories.

Else you need to study 301 redirects and use it in your .htaccess to make the redirection as you need.

how about change it from config.
the file you search must be in config/routes.php
add $route['anyname']="category/view";
in that files