#!/usr/bin/lua5.4

local file_path = "/var/nex/board"
local file = io.open(file_path, "r")
if file then
    for line in file:lines() do
        print(line)
    end
    file:close()
else
    io.stderr:write("Can't open '" .. file_path .. "': " .. (err or "Unknown error") .. "\n")
end