G'day Win,

Welcome to the monastery.

While the output may appear to be "gobbledygook", it could provide useful troubleshooting tips. You need to help us to help you by providing this sort of information.

Have you tried these commands at a shell prompt? If you have, what was the outcome? If not, please do so.

The use of find in | find "port_number" | doesn't look right to me. In the absence of any options, the first argument to find is a pathname. Is that command correct as written? Did you perhaps mean something else, e.g. grep?