Get taxonomy slug from url

Sorry I’m new to taxonomies & trying to learn quickly.

I’ve set up sectors and assigned a post to it. If I go to the post, I can see the URL has
www.mydomain.com/sectors/auto/

How can I get auto from the URL?
Thanks

I think you are looking for get_query_var

$term_slug = get_query_var( 'term' );
$taxonomyName = get_query_var( 'taxonomy' );
$current_term = get_term_by( 'slug', $term_slug, $taxonomyName );