Question

鉴于此JSON片段，我试图找出与特定＆＃34; instance-id＆＃34;相对应的密钥名称。使用jq。

我正在尝试这个：

jq '.machines | keys as $x | if .[]."instance-id"=="wdc7ae" then <some-code-to-get-the-key>  else empty end'

其中$ x包含所有机器号。和＆＃34; wdc7ae＆＃34;是具体的＆＃34; instance-id＆＃34;值

＆＃13;

{
  "model": {
    "name": "maas2",
    "controller": "ctr-xenial",
    "cloud": "maas",
    "version": "2.0.1"
  },
  "machines": {
    "1": {
      "dns-name": "10.4.0.181",
      "instance-id": "wdc7ae",
      "series": "xenial"
    },
    "2": {
      "dns-name": "10.4.0.182",
      "instance-id": "7mx74d",
      "series": "xenial"
    },
    "3": {
      "dns-name": "10.4.0.183",
      "instance-id": "rgn3ca",
      "series": "xenial"
    },
    "4": {
      "dns-name": "10.4.0.184",
      "instance-id": "kmy4bh",
      "series": "xenial"
    },
    "5": {
      "dns-name": "10.4.0.185",
      "instance-id": "eb38c7",
      "series": "xenial"
    }
  }
}

＆＃13;

非常感谢任何帮助。

Answer 1

谢谢＆＃39;金鱼＆＃39;来自#jq irc频道。这是＆＃39;金鱼＆＃39;的命令。分享和工作就像一个魅力对我来说：

.machines | to_entries[] | select(.value."instance-id" == "wdc7ae").key

从json中提取密钥

1 个答案: