Changing the default port for a Unix install

Hi Team,

I have an issue with an intended Unix client install.

Filesystem agent only.

We unfortunately have port 8400 occupied by other software, so I need to install to a different port.

However, I don’t see where i can over-ride 8400 with my intended port.

And for whatever reason, I can no longer find detailed instructions on the Unix\Linux install process.
I’m not a Unix admin, so probably like quite a few of us, it would be helpful if there was more detail on available options.

Bottom line, can someone advise how, or where I can provide a different port during a local install (I have a Unix tech available to assist).

Thanks