How to modify the default 8080 port of Jenkins

1. vim  /etc/init.d/jenkins, modify the check_tcp_port command of the do_start function, and change the port number from 8080 to 8081.

2.  In the vim /etc/default/jenkins file, change the port 8080 to 8081.

3. service jenkin restart

4. ps -def | grep java