Filesystem load to RAM vs piping

For anyone as silly as me who decides to change the baud rate without waiting for a configurable wifi communication module, here is how to rescue yourself.

AT+CIOBAUD seems to carry across reboots, which everyone says it doesn't, but it does!

digitalWrite(A14, 0);
Serial2.setup(9600, { rx: A3, tx : A2 });
at = require('AT').connect(Serial2);
at.cmd("\r\nAT+RST\r\n", 10000, function cb(d) {
  at.cmd(“AT+CIOBAUD=115200\r\n”, 1000, function () {
    at.debug();
    at.cmd(“AT+RST\r\n”, 1000);
  });
});
digitalWrite(A13, 1);
digitalWrite(A14, 1);