Used to be
/show_window Inventory.Bag_clone_0_-5
...
/show_window Inventory.Bag_clone_5_-5
(that's the command to open them when not in your house. you need to have opened them once during that session for the contents to be visible)
Otherwise there is also /bag_open 0 -5 but IIRC that only works for the vault if you are in your house.