How do I disable command blocks in Minecraft 1.8 singleplayer? [duplicate]
My friend created a clock with a command block that teleports me to one place on my singlepalyer world.
How can I disable command blocks and get unstuck from this infinite loop?
41 Answer
Unfortunately there isn't a good way to fully disable all command blocks in singleplayer, you'll need to remove the command block (or the clock) to disable it.
One option is to download the server software from minecraft.net, temporarily host the map as the server, then turn enable-command-block to false in the server.properties and use the fact that you're not being teleported to break the command block.
This requires somewhat knowing where the command blocks are. Going into /gamemode 3 to noclip should help. The command block has to be in loaded chunks if it's activating, so looking around spawn is a good start point, or asking your friend where they put it.
As an alternative, you can download an external map editor such as MCEdit to remove the command block. With MCEdit, you can load up the world, fly around unaffected by the teleporting, and also turn on the ability to see TileEntities through other blocks to help locate the command block:
