Equip is a command that displays what you are currently wearing. It can be shortened to just 'eq' if needed.
You can also use this command to put gear on a horse or master mob that is following you.
Syntax: equip itemname horse/mob name
In Game Description
Syntax: equipment This displays a list of what you are currently wearing, the status of that equipment, and where it is worn. Also can be seen by looking at oneself.