I created a new world in singleplayer and I placed down a command block and tried to use it. However, It doesn't seem to work at all. It may be disabled. If so, How do I enable it?
If your in singleplayer, you have to have "Cheats Enabled", to check if you do; try /give [player] 137. If it works, you have it enabled. Then check to see if you are in creative mode. Try using a command. If it doesn't say anything, than your using an invalid command or have a client mod interfering. What command are you exactly using?
well, then I may be using an invalid command. So maybe you could give me a command that works?