The official website for Jenkins is Jenkins. If you click the given link, you can get the home page of the Jenkins official website as shown below.
By default, the latest release and the Long-Term support release will be available for download. The past releases are also available for download. Click the Long-Term Support Release tab in the download section.
Click the link “Older but stable version” to download the Jenkins war file.
Open the command prompt. From the command prompt, browse to the directory where the jenkins.war file is present. Run the following command
D:\>Java –jar Jenkins.war
After the command is run, various tasks will run, one of which is the extraction of the war file which is done by an embedded webserver called winstone.
D:\>Java –jar Jenkins.war Running from: D:\jenkins.war Webroot: $user.home/ .jenkins Sep 29, 2015 4:10:46 PM winstone.Logger logInternal INFO: Beginning extraction from war file
Once the processing is complete without major errors, the following line will come in the output of the command prompt.
INFO: Jenkins is fully up and running
Once Jenkins is up and running, one can access Jenkins from the link − http://localhost:8080
This link will bring up the Jenkins dashboard.