Self Updating Program

local selfsource = "XEmTmxhk"
local source = "0tWz5PW6"

local src0, err0 = http.get("https://pastebin.com/raw/" .. source)
if not src0 then error(err0) end

local src1, err1 = http.get("https://pastebin.com/raw/" .. selfsource)
if not src1 then error(err1) end

fs.delete("moon.lua")
fs.delete("startup.lua")

local file = fs.open("moon.lua", "w")
file.write(src0.readAll())
file.close()
src0.close()

file = fs.open("startup.lua", "w")
file.write(src1.readAll())
file.close()
src1.close()

shell.run("moon")