# File lib/deltacloud/drivers/condor/condor_client.rb, line 204
    def destroy_instance(instance_id)
      bare_xml = Nokogiri::XML(`#{CONDOR_Q_CMD} -xml`)
      cluster_id = (bare_xml/'/classads/c/a[@n="GlobalJobId"]/s').collect do |id|
        id.text.split('#')[1] if id.text.split('#').last==instance_id
      end.compact.first
      `#{CONDOR_RM_CMD} #{cluster_id}`
    end