public query variables in wordpress

Hi,

below are the list of public query variables in wordpress.I know some of it such as cat,p,s etc.but I am not clear about many other variables,can any one please guide me through this variable learning process?

var $public_query_vars = array('m', 'p', 'posts', 'w', 'cat', 'withcomments', 'withoutcomments', 's', 'search', 'exact', 'sentence', 'debug', 'calendar', 'page', 'paged', 'more', 'tb', 'pb', 'author', 'order', 'orderby', 'year', 'monthnum', 'day', 'hour', 'minute', 'second', 'name', 'category_name', 'tag', 'feed', 'author_name', 'static', 'pagename', 'page_id', 'error', 'comments_popup', 'attachment', 'attachment_id', 'subpost', 'subpost_id', 'preview', 'robots', 'taxonomy', 'term', 'cpage', 'post_type')

 

You can find them scattered around the Wordpress Codex, but I don't know if there a complete list. This blog explains a few of them:
Abhijit Nadgouda’s List of WordPress Global Variables

 

ya it is scattered.I found some in query_posts() parameters.