Drupal has a number of default paths that are created automatically:
/node/3 : Node with id of 3
/user : User login screen, or user profile if already logged in
/user/3 : User with id of 3
/user/password : Request new password
/user/register : Create a new account
/user/login : Login page
/blog : Blog summary for site
/search : Search page
/admin/content/node-settings/rebuild : Rebuild permissions for site.
To see the alias for a path, use drupal_get_path_alias.(http://api.drupal.org/api/function/drupal_get_path_alias)
To see the original path before aliasing, use $_GET['q']
Requires Token module.To specify the path to a file in a template, use drupal_get_path.
drupal_get_path returns the path to a system item (module, theme, etc.). drupal_get_path($type, $name) http://api.drupal.org/api/function/drupal_get_path/6