loop 0.1s attack + sort

local checkInterval = 60  -- seconds
local lastCheck = os.clock()

while true do
    turtle.attack()
    sleep(0.1)

    if os.clock() - lastCheck >= checkInterval then
        for slot = 1, 16 do
            turtle.select(slot)
            local item = turtle.getItemDetail()
            if item then
					if item.name == "minecraft:bone" then
                    -- Turn around to drop behind
                    turtle.turnLeft()
                    turtle.turnLeft()
                    turtle.drop()
                    turtle.turnLeft()
                    turtle.turnLeft()
                else
                    turtle.dropDown()
                end
            end
        end
        turtle.select(1)
        lastCheck = os.clock()
    end
end