Hi Kelvin,
Please note, that this would require knowledge of regular expressions, and unfortunately development questions like this is out of scope with CJT Dev support. I can assist you with this as a one-off case.
In the Expressions section of the Advanced tab, you may want to try this: ^http\:\/\/www\.xxx\.com\/personnel\/\d+
Press Enter or Return to create the new line, and then click Save.
This should do what you want to do.
Kind Regards,
Damian