List all clients domains, or zones, or DNS records

[g8se]

I'm moving a client from one plesk server to another. However for various reasons, I'll be leaving their dns hosting on the old server temporarily.

So how can I easily update all the A records of a client that currently contain one IP address, and change them to another?

I'd like to use the /opt/psa/bin/dns utility, rather than the web interface, as it should be quicker for a bulk change.