Question

在[]中有很多以下的块，如何提取.title和＆＃34;值＆＃34; .eye.four.watcher1 []。name ==＆＃34; cat＆＃34;对于具有＆＃34; group＆＃34;：＆＃34; A＆＃34;？

的块

我尝试过的是：

$ jq＆＃39;。 |选择（.group ==＆＃34; A＆＃34;）| .title +＆＃34; ＆＃34;。+ eye.four.watcher1 []名称＆＃39。 test.json

＆＃34; ProfileXXX dog＆＃34;

＆＃34; ProfileXXX cat＆＃34;

＆＃34; ProfileXXX鼠标＆＃34;

但是如何只打印＆＃34; cat＆＃34;的标题和价值？使用＆＃34; group＆＃34;：＆＃34; A＆＃34;，？

{
  "title": "ProfileXXX",
  "pagelen": 10,
  "group": "A",
  "size": 1,
  "eye": {
    "one": "git",
    "two": false,
    "three": "...",
    "four": {
      "watcher1": [
        {
          "name": "dog",
          "value": "aaaa"
        },
        {
          "name": "cat",
          "value": "bbbb"
        },
        {
          "name": "mouse",
          "value": "cccc"
        }
      ],
      "watcher2": {
        "type": "B",
        "href": "2..."
      },
      "watcher3": {
        "type": "C",
        "href": "3..."
      },
      "values": [
        {
          "five": "git",
          "six": false,
          "seven": "...",
          "eight": {
            "watchers": {
              "href": "..."
            },
            "forks": {
              "href": "..."
            },
            "clone": [
              {
                "href": "...",
                "name": "https"
              },
              {
                "href": "...",
                "name": "ssh"
              }
            ],
            "pullrequests": {
              "href": "..."
            }
          },
          "fourteen": false,
          "fiveteen": {
            "username": "...",
            "display_name": "...",
            "uuid": "...",
            "links": {
              "self": {
                "href": "..."
              },
              "html": {
                "href": "..."
              },
              "avatar": {
                "href": "..."
              }
            }
          },
          "updated_on": "...",
          "size": 2328936,
          "is_private": true,
          "uuid": "..."
        }
      ]
    }
  }
}

Answer 1

jq 解决方案：

jq -r '.[] | select(.group=="A") | .title +" "+ (.eye.four.watcher1[] | select(.name=="cat")).value' test.json

输出：

ProfileXXX bbbb

Answer 2

以下是使用variable binding和string interpolation的解决方案：

     select(.group == "A")
   | .title as $t
   | .eye.four.watcher1[]
   | select(.name == "cat")
   | "\($t) \(.value)"

在filter.jq中使用此过滤器，在test.json

中使用此示例数据

$ jq -Mr -f filter.jq test.json

产生

ProfileXXX bbbb

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jq使用jq一次从不同的[]中获取多个值

2 个答案: