rednet.open("right")
while true do
  event, id, text = os.pullEvent()
  if event == "rednet_message" then
    if text == "excavate" then
        shell.run(""..text, "5")
    elseif text == "go up" then
        for x = 0, 5, 1 do
        if turtle.detectUp() then
            turtle.digUp()
            x=x+1
        else
            turtle.up()
        end
        end
    elseif text == "go right" then
        turtle.turnRight()
        for x = 0, 5, 1 do
        if turtle.detect() then
            turtle.dig()
        end
            turtle.forward()
            x=x+1
        end
        end
        turtle.turnLeft()
    elseif text == "go left" then
        turtle.turnLeft()
        for x = 0, 5, 1 do
        if turtle.detect() then
            turtle.dig()
        end
            turtle.forward()
            x=x+1
        end
        end
        turtle.turnRight()
    elseif text == "go down" then
        for x = 0, 5, 1 do
        if turtle.detectDown() then
            turtle.digDown()
        end
            turtle.down()
            x=x+1
        end

    elseif text == "go back" then
        turtle.turnRight()
        turtle.turnRight()
        for x = 0, 5, 1 do
        if turtle.detect() then
            turtle.dig()
        end
            turtle.forward()
            x=x+1
        end

        turtle.turnLeft()
        turtle.turnLeft()
   end
  end
end