local cmd = {

[keys.down] = turtle.back,

[keys.up] = turtle.forward,

[keys.left] = turtle.turnLeft,

[keys.right] = turtle.turnRight,

[keys.space] = turtle.placeUp

}

repeat

local k, k = os.pullEvent("key")

if cmd[k] then print(table.concat({

keys.getName(k), ({cmd[k]()})[2]

}, ", "))

else print(keys.getName(k), "?") end

until cows_come_home