I want to delete Views under Jenkins without affecting the Jobs under the view. I am asking this since I am not able to enter same name of View even after deleting this as an Ad
For deleting a view (and not touching any jobs therein) use
def view = Jenkins.instance.getView("MyView")
Jenkins.instance.deleteView( view )
Your code deletes the jobs in the view (but not the view itself), so be careful with that : )
go to view --> edit view --> unchecked all jobs on that view --> Save --> Delete View