Using /execute For Item Detection In Chests Or Hoppers

Any idea how to do this?

I understand that this is an if-then command, and that I can correctly identify the chest/hopper the item is inside. The problem arises where the item isn't identified inside the chest/hopper.

/execute if x y z chest{item:[{id:"minecraft_stone", count:2, slot:0}]} run msg hyakuren test

The bolded part is the problem, I think. I'm not sure. But, this command says that if there is a chest at x, y, z with 2 stone in its top left-hand corner slot, it will message Hyakuren "test". It should. It doesn't.

 

Do /data get block x y z on the chest, and check if what the execute command is looking for matches the chest's data. If not, retype the command to make sure you've got it right. If that doesn't work, I'd suggest making a post on the official Minecraft Forums, you're more likely to get a good answer there.

 

Thanks for the advice! It did work.

/execute if block 233 4 41 hopper{Items:[{Slot:0b, id: "minecraft:iron_sword", Count: 1b, tag:{Damage: 0}}]} run msg hyakuren testing