# jenkins-cli > An open-source automation server that facilitates the automation of software development lifecycle. > More information: . - Connect to jenkins CLI: `java -jar jenkins-cli.jar -s {{jenkins_server_url}} -auth {{username}}:{{api_token}}` - Restart jenkins: `java -jar jenkins-cli.jar -s {{jenkins_server_url}} restart` - Shutdown jenkins: `java -jar jenkins-cli.jar -s {{jenkins_server_url}} shutdown` - Display help: `java -jar jenkins-cli.jar -s {{jenkins_server_url}} help` - Display version: `java -jar jenkins-cli.jar -s {{jenkins_server_url}} version`