generate_post_author_output

This filter returns the HTML that displays your post author along with your blog posts.

You can use this filter to completely overwrite the HTML given, or even add to it.

For example, if you wanted to add an author icon before your author name, you could do this:

add_filter( 'generate_post_author_output','tu_add_to_post_author' );
function tu_add_to_post_author( $output ) {
    return '<i class="fa fa-user-circle" aria-hidden="true"></i> ' . $output;
}

Another example is if you want to remove the date on a specific post type, but keep it elsewhere:

add_filter( 'generate_post_author_output','tu_post_type_remove_author' );
function tu_post_type_remove_author( $output ) {
    // If we're on our "my-post-type" post type, remove the author.
    if ( is_post_type_archive( 'my-post-type' ) || 'my-post-type' == get_post_type() ) {
        return '';
    }

    // Otherwise, display it.
    return $output;
}

One more example is if you want to completely customize your author name and link:

add_filter( 'generate_post_author_output','tu_customize_author_link' );
function tu_customize_author_link( $output ) {
    return '<a href="MY CUSTOM URL">My Name</a>';
}