Command to clear inventories per world group

[to175]

Hi, I need to clear all inventories of a/several world(s) ! For example if players go in a world "A" and take dirt then then disconnect or go in an other world "B", I need to clear their inventory of this world "A" where they are not in.

I need commands like that : /mv clearinv And I could do also that /mv clearinv to clear all inventories in this specific of players online AND offline .

Thanks you !