hook **** .. _cluster.hook.command: :kw:`command` ============= ================= ================================================================ **scopable** False **required** False **default** None **scope order** specific > generic **convert** shlex ================= ================================================================ The command to execute on selected events. The program is fed the json-formatted event data through stdin. .. _cluster.hook.events: :kw:`events` ============ ================= ================================================================ **scopable** False **required** False **default** **scope order** specific > generic **convert** list ================= ================================================================ The list of events to execute the hook command on. The special value ``all`` is also supported.