# ./client -hNote: Only for update existed rule group!Usage: server [options...]Options:  -h    help  -rulefile string        rule file  -show string        use 'show all' to show all rule groups; use 'show ${rule_group_name}' to show detail info of a rule group  -t string        target

# ./client --show all -t 127.0.0.1:20000<----Show Rule Groups---->exporter.rulesnode.rules

# ./client --show node.rules -t 127.0.0.1:20000groups:- name: node.rules  rules:  - alert: nodeCpuLoadPressure    expr: node_load15{} > 0.80    for: 15m    labels:      severity: warning    annotations:      description: Ali node cpu_load15 {{ $labels.instance }} value {{ $value }}      summary: cpu_load15 > 0.80
......