Command Block

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Command Block
Command Block

Name Command Block
Source Mod Minecraft
ID Name
First Appearance MC 1.4
Type Block
Stackable Yes (64)
Solid Yes
Transparent No
Affected by Gravity No
Emits Light No
Flammable No
Required Tool None

The Command Block is a block added by Minecraft. It can be used to execute commands.


Before MC 1.9[edit]

Player can place down a Command Block and right-click it in creative mode. That will open a GUI with 2 rows: player can enter command in top one and supply a redstone signal to Command Block, the bottom one will then contain command output (if any) and command will be executed like player did it themselves.

MC 1.9 and higher[edit]

The Command Block now has several additional modes:

  • Impulse - same as before.
  • Chain - it will only activate itself, when a command block on opposite side of its arrow is activated.
  • Repeating - it will run 20 times per seconds.

Every Command Block has two further options that can be toggled:

  • Conditional / Unconditional - a Command Block set to "Conditional" will only be activated, if the Command Block before it run successfully.
  • Needs Redstone / Always Active - a Command Block set to "Always Active" won't need a redstone signal to be activated.


Command Block can be used to create the following items: