post_list_shortcode

function wow_theme_post_list_shortcode($atts){

    extract(shortcode_atts(array(

       'count' => -1,
       'post' => 'page'

    ), $atts));

    $q = new WP_Query(array(
        'post_type' => $post,
        'posts_per_page' => $count
    ));

    $list = '<ul>';

        while($q->have_posts()) : $q->the_post();

            $idd = get_the_ID();
            $custom_field = get_post_meta( $idd, 'custom_field', true );
            $post_content = get_the_content();

            $list .= '<li><a href="'.esc_url(get_permalink()).'">'.get_the_title($idd).'</a></li>';

        endwhile;
    $list .= '</ul>';

    wp_reset_query();

    return $list;


}
add_shortcode('post_list', 'wow_theme_post_list_shortcode');