Count

Usage: count <itemname/all> [in <container>|in room|on ground]
       count mirror images
       count <bait|worms|other_bait_type>

With this command you can count the amount of one item you are currently
carrying with you or the amount of one item in a container you have with
you. 'in room' (or 'here', or 'on ground') counts what is lying around
you instead. You can also count the amount of mirror images of you
present (created with the 'mirror image'-spell).