itemname: The identifier for the item to remove.Removes items from the inventory, but also returns a message if the specified item is present. It allows players to permanently enable or disable cheats in their world. This command will only exist if the world was created prior to 1.26.5 (when cheats were added to the game). Shows the seed number of the current world. This command is always available, even if cheats are disabled. Note that is an optional modifier that can be added to coordinates, which makes it relative the player's location. For example, in /lightning x y], you can simply omit the X and Y parameters like so: /lightning.

When writing a command, you can omit the parameters. Parameters between the brackets is an optional parameter.For example, in /gamemode, you can write /gamemode survival, /gamemode creative, or /gamemode adventure. Parameters between the brackets is a list of options, separated by | characters.It's important to know the difference between them. The command definition includes two different types of brackets. When the console is open, the player can write a command, and execute it by pressing Enter. This can be changed in the game settings. The default key binding for opening the command console is 'T'. This option can only be enabled on the world creation screen, and cannot be enabled after a world has already been created. In order to use commands, the world must have cheats enabled. Commands (also known as Cheats) are scripted codes that the player can write in the game console that change the game directly.

Blocksworld cheats