siba2.lua

turtle.select(1)
local fl = turtle.getFuelLevel()
if fl == 0 then
  fl = turtle.refuel(4)
end
print("fuel:"..tostring(fl))

local function MoveLine()
  local moved = 0
  while true do
    local success, data = turtle.inspect()
    if success then
      print("name:"..data.name)
      print("meta:"..textutils.serialize(data))
      if data.name ~= "minecraft:grass" then
        break
      end
    end
    turtle.forward()
    moved = moved + 1
  end

  for i=1, moved do
    turtle.back()
  end
end

MoveLine()