Editing MinecraftCommands (section)

=== blockdata ===

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Modifies the data tag of a block.

;Syntax

: <code>blockdata <''x''> <''y''> <''z''> <''dataTag''></code>

;Arguments

: ''x y z''
:: Specifies the coordinates of the block to be modified. May be provided in [[#Tilde notation|tilde notation]] to identify a position relative to the command's execution.

: ''dataTag''
:: Specifies the [[#Data tags|data tag]] elements to be added to, or overwrite elements of, the specified block. Must be a compound [[NBT tag]] (for example, <code>{CustomName:Fred}</code>).

;Result

: Fails if the arguments are not specified correctly, or if the block is "not a data holder block," as in it is not associated with a [[block entity]].

: On success, modifies the data tag of the targeted block.

;Examples

: To change the primary power of the beacon at (0,64,0) to [[Haste]]:
:: <code>blockdata 0 64 0 {Primary:3}</code>

;See also

:* [[Chunk format#Block entity format]] — defined data tags for tile entity blocks
:* {{cmd|entitydata}} — changes an entity's data tag
:* {{cmd|replaceitem}} — replaces items in a block's inventory
:* {{cmd|setblock}} – places a new block at a position
:* {{cmd|stats}} — sets a block's CommandStats


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