2020 Update:

In case you landed here looking for a refresher on how to update the post\'s meta, as I did, see the following edit:

The post array argument in wp_insert_post() takes an inner array called meta_input, so you can create the post with proper meta in one database query.

$page_id = wp_insert_post(array(
    \'post_title\'    =>  \'Team\',
    \'menu_order\'    =>  \'2\',
    \'post_content\'  =>  \'[team]\',
    \'post_type\'     =>  \'page\',
    \'post_parent\'   =>  1,
    \'post_status\'   =>  \'publish\',
    \'meta_input\'    =>  array(
        \'your_meta_key\' => \'your meta value\'
    ),
));

The same can be done for wp_update_post():

wp_update_post(array(
  \'post_title\' => \'About\',
  \'ID\' => $page_id,
  \'meta_input\' =>  array(
    \'your_meta_key\' => \'your meta value\'
  ),
));

Original Answer:

is this code enough for you?

/*
** wp_insert_post - http://codex.wordpress.org/Function_Reference/wp_insert_post
** function will create a new post and return a $interger shich is a ID of the new created post.
*/
$page_id = wp_insert_post(array(
    \'post_title\'    =>  \'Team\',
    \'menu_order\'    =>  \'2\',
    \'post_content\'  =>  \'[team]\',
    \'post_type\'     =>  \'page\',
    \'post_parent\'   =>  1,
    \'post_status\'   =>  \'publish\',
));

/*
**  wp_update_post - http://codex.wordpress.org/Function_Reference/wp_update_post
** function is simular (actually its almost alias) of wp_insert_post
** it will update a post 
** $arguments that passed to wp_update_post is a same as in wp_insert_post but require additional argument ID whish is id of the post
*/
wp_update_post(array(\'post_title\' => \'About\', \'ID\' => $page_id));