java -jar jenkins-cli.jar -s http://localhost:8088 help
java -jar jenkins-cli.jar -s http://localhost:8088 login --username admin --password admin
java -jar jenkins-cli.jar -s http://localhost:8088 list-jobs
java -jar jenkins-cli.jar -s http://localhost:8088 reload-configuration // you can modify configuration files directly, then use this command to load your modification;