Use this command to have the ULTIMATE MINING EXPERIENCE. All you have to do is walk underground and every single block of stone, gravel, and dirt will be deleted except ores! so all you have to do is walk around and the command will do all of the mining for you! and YOU get to have the fun of mining ores. This machine also comes with a glow stone mechanism where you hold the glow stone dust in your hand, and it places a glow stone trail below your feet. To Deactivate click the sign that says Deactivate :)
Enjoy!
(P.S. Make sure to raise the command up one block before you activate it. )