Wordpress Post settings

Default gallery link.php

// 1.2 Default gallery link  
add_shortcode( 'gallery', 'my_gallery_shortcode' );
function my_gallery_shortcode( $atts ) {
    $atts['link'] = 'file';
    return gallery_shortcode( $atts );
} 

Default image links.php

// 1.1 Default image link  
function default_image_upload_settings() {
	update_option('image_default_link_type', 'none' );
	update_option('image_default_size', 'large' );
} add_action('after_setup_theme', 'default_image_upload_settings');

make links clickable.php

// 1.4 make links clickable 
add_filter('the_content', 'make_clickable');

more link.php

// 1.3 more link
add_filter( 'excerpt_more', 'new_excerpt_more' );
function new_excerpt_more( $more ) {
	return ' <a class="read-more" href="'. get_permalink( get_the_ID() ) . '">' . __('Read More', 'your-text-domain') . '</a>';
}