I have jenkins.war and I started it from command prompt in Windows as:
java -jar jenkins.war
It was started well and easily browsed as http://localhost:8080
I want to start on 9090 port. How can I do that?
Use the following command at command prompt:
java -jar jenkins.war --httpPort=9090
If you want to use https use the following command:
java -jar jenkins.war --httpsPort=9090
Details are here