Json 如何使用jq获得完整的对象/数组？

我在跑步：

$ jq ".environments[] | select(.name | contains(\"docker\")) | .database.database_config.host = \"${DGRAPHIP}\"" weaviate.conf.json

在此文件中：

其输出为（如果

DGRAPHIP=1.2.3.4

）：

简单调整：

jq --arg dgraphip "1.2.3.4" '{"environments" : .environments 
 | map(select(.name | contains("docker")) 
 | .database.database_config.host = $dgraphip)}' weaviate.conf.json

输出：

{
  "environments": [
    {
      "name": "docker",
      "database": {
        "name": "dgraph",
        "database_config": {
          "host": "1.2.3.4",
          "port": 9080
        }
      },
      "schemas": {
        "Thing": "https://raw.githubusercontent.com/weaviate/weaviate-semantic-schemas/master/weaviate-Thing-ontology-schema_org.min.json",
        "Action": "https://raw.githubusercontent.com/weaviate/weaviate-semantic-schemas/master/weaviate-Action-ontology-schema_org.min.json"
      },
      "mqttEnabled": false
    }
  ]
}

---

下面是另一种使用

示例运行（假设数据在

data.json

中）

---

您希望结果中只包含

docker

环境，还是同时包含所有其他环境（未修改）？提示：不要使用插值创建过滤器；将

$DGRAPHID

作为实参数传递。这也简化了引用：

jq--arg newhost“$DGRAPHID”。环境…|。database.database\u config.host=$newhost'

。谢谢@chepner。完全有道理。妈的，我自己都搞不懂。谢谢你，伙计！

jq --arg dgraphip "1.2.3.4" '{"environments" : .environments 
 | map(select(.name | contains("docker")) 
 | .database.database_config.host = $dgraphip)}' weaviate.conf.json

{
  "environments": [
    {
      "name": "docker",
      "database": {
        "name": "dgraph",
        "database_config": {
          "host": "1.2.3.4",
          "port": 9080
        }
      },
      "schemas": {
        "Thing": "https://raw.githubusercontent.com/weaviate/weaviate-semantic-schemas/master/weaviate-Thing-ontology-schema_org.min.json",
        "Action": "https://raw.githubusercontent.com/weaviate/weaviate-semantic-schemas/master/weaviate-Action-ontology-schema_org.min.json"
      },
      "mqttEnabled": false
    }
  ]
}

.environments |= map(      
     select(.name | contains("docker"))
   | .database.database_config.host = "1.2.3.4"
) 

$ jq -M '.environments |= map(select(.name | contains("docker")) | .database.database_config.host = "1.2.3.4")' data.json
{
  "environments": [
    {
      "name": "docker",
      "database": {
        "name": "dgraph",
        "database_config": {
          "host": "1.2.3.4",
          "port": 9080
        }
      },
      "schemas": {
        "Thing": "https://raw.githubusercontent.com/weaviate/weaviate-semantic-schemas/master/weaviate-Thing-ontology-schema_org.min.json",
        "Action": "https://raw.githubusercontent.com/weaviate/weaviate-semantic-schemas/master/weaviate-Action-ontology-schema_org.min.json"
      },
      "mqttEnabled": false
    }
  ]
}