How can I see from the cmd if port 8080 is open?

Use the following command:

netstat -an | find ":8080"

Or you can also try findstr

netstat -na | findstr "8080"

to verify if port 8080 is open.

  

To reduce the results. You can also filter by LISTENING , ESTABLISHED , TCP . However, it is sensitive to upper and lower case.

Note: Executing the command if it does not show anything means that the port is NOT being listened to (not in use)

In Windows, you execute cmd and type netstat -an