Renaming job in jenkins/hudson

You can rename selected job through jenkins UI by following these steps:

job>configure>Advanced Project Options>Display Name

Other way is to rename the directory on the Jenkins/hudson server and then restart the Jenkins.

For Quick understanding I used some screenshots:

I used Jenkins version: 2.148

Step 1:

On home screen / Job list just click on job option.

OR

Just open Job details you will see left side option for rename.

Step 2:

Enter new name and just click on Rename button

Just for the sake of completeness, want to mention the update of Hudson job name using Groovy script console:

// Groovy script to rename job in Hudson
import hudson.model.*;

def JOB_PATTERN = ~/^MY_JOB.*$/; //find all jobs starting with "MY_JOB".
def NEW_PART = "_NEW"

(Hudson.instance.items.findAll { job -> job.name =~ JOB_PATTERN }).each { job_to_update -> 
    println ("Updating job " + job_to_update.name);
    def new_job_name = job_to_update.name + NEW_PART; //Append new part to the job name
    println ("New name: " + new_job_name);
    job_to_update.renameTo(new_job_name);
    println ("Updated name: " + job_to_update.name);
    println("="*80);
}

Rather helpful if you need to update several dozens of jobs at the same time.

Note: The following code will not work:

job_to_update.name = new_job_name;
job_to_update.save();

Setting the name of the job to new and saving configuration will not rename current job, but create a copy of the job configuration with a new name. Also, in this case, there might be broken references, so Hudson will need to have configuration reloaded.