Jenkins: remove old builds with command line

Question

I delete old jenkins builds with rm where job is hosted:

my_job/builds/$ rm -rf [1-9]* 

These old builds are still visible in job page. How to remove them with command line?
(without the delete button in each build user interface)

Answer 1

Here is another option: delete the builds remotely with cURL. (Replace the beginning of the URLs with whatever you use to access Jenkins with your browser.)

$ curl -X POST http://jenkins-host.tld:8080/jenkins/job/myJob/[1-56]/doDeleteAll 

The above deletes build #1 to #56 for job myJob.

If authentication is enabled on the Jenkins instance, a user name and API token must be provided like this:

$ curl -u userName:apiToken -X POST http://jenkins-host.tld:8080/jenkins/job/myJob/[1-56]/doDeleteAll 

The API token must be fetched from the /me/configure page in Jenkins. Just click on the "Show API Token..." button to display both the user name and the API token.

Edit: As pointed out by yegeniy in a comment below, one might have to replace doDeleteAll by doDelete in the URLs above to make this work, depending on the configuration.