bank.lua

-- bank.lua
local tArgs = {...}

if #tArgs > 0 then
    if tArgs[1] == "help" then
        print("Usages:")
        print("requestStatement(key, name, id)")
        print("sendTransaction(key, name, sum, id)")

    else
        local new = fs.open(tArgs[1] .. ".lua", "w")
        new.writeLine("local id = --UserInput--")
        new.close()
    end
end

function requestStatement(lock, name, pc)
    rednet.send(pc, {"read", name, "placeholder", lock})
    local id, message = rednet.receive()
    if id == pc then
        return message
    end
end

function sendTransaction(lock, name, sum, pc)
    rednet.send(pc, {"write", name, sum, lock})
end