I have problem comparing two variables containing Wireless registration-table..

RouterOS Scripting
1

I’m new to scripting and I’m trying to write a script that makes the router notifying me whenever a new Wireless device is being connected or disconnected by making a beep sound. My script captures a view of registration-table and compares it with a new one which being taken periodically. I think there must be something wrong with my variables; because the “if” command only recognizes them as to be the same. Any help and ideas would be appreciated. Here’s my script:
{
:global first;
:set first [/interface wireless registration-table];
:while (true) do={
:delay 500ms;
:global second;
:set second [/interface wireless registration-table];
:if ([$first] = [$second]) do={} else={
:beep;
:global first ($first = $second);
}
}
}

2

Use:
[/interface wireless registration-table find]

and
:if ([:len $first] = [:len $second]) do={} else={\

and change that last global statement to
:set $first $second

and move :global second out of the loop.

3

Thank you for your reply. I tried this as below:
{
:global first;
:global second;
:set first [/interface wireless registration-table find];
:while (true) do={
:delay 500ms;
:set second [/interface wireless registration-table find];
:if ([:len $first] = [:len $second]) do={} else={
:beep;
:set $first $second;
}
}
}
Still not working though.

4

It works for me (tested with bridges to make it easier to control).

5

Yep, you’re right. I’ve just rebooted my router and it’s working! Thank you Sid5632.