minecraft-java-edition
I would like to clear ANY item with a lore of "This is an item of death.." I can achieve this with a diamond chest plate by doing clear @a minecraft:diamond_chestplate -1 -1 {display:{Lore:[This is an item of death..]}}
But I want to be able to do this with one command block and no scoreboards. In other words I need to know how to specify any item.
Please see
Minecraft Empty Chests Command Block
as I think this answers you question.
Let's say for example your equipment chest is supposed to contain a notch apple, a gold sword, a bow, and a stack of arrows. The command for that would be /blockdata X Y Z {Items:[{id:322,Damage:1,Count:1,Slot:0},{id:283,Count:1,Slot:1},{id:261,Count:1,Slot:2},{id:262,Count:64,Slot:3}]}, replacing X Y and Z as appropriate. There's a lot of stuff going on in that command, but essentially, you are changing the data of the chest to contain the specified items. It's the same concept as using /setblock to spawn a new chest with these items, except instead of replacing the chest, you're overwriting its data.
If you're trying to clear all item drops in the world, you can run:
/kill @e[type=item]
which will kill all dropped items in the world. However, there are slightly better ways of doing this. Namely, only clear items within a radius of x blocks from the command block. This preserves drops elsewhere, but still clears the first item:
/kill @e[type=item,r=x]
Additionally, if you want to ensure that something can only be triggered once, place an input stabilizer on it:
This device will "lock" the redstone state to ON, even after the item is removed. It cannot be re-triggered unless you manually break the redstone.
You can expand on this by only making it hold one pulse if so needed.
Best Answer
This is technically impossible to be done with a single command block. If you want to enter metadata (like
{display:{Lore:[This is an item of death..]}}) you have to enter the item type in the other argument in order to work, that means you have to specify the item type.