在JQ中选择多个条件 [英] Selecting multiple conditionals in JQ

问题描述

我刚开始使用jq json解析器，是否仍然可以选择多个select? 我有这个:

I've just started using jq json parser, is there anyway to choose multiple select? I have this:

cat file | jq -r '.Instances[] | {ip: .PrivateIpAddress, name: .Tags[]}
                               | select(.name.Key == "Name")'

我还需要包含.name.Key == "Type"

这是JSON:

{
  "Instances": [
    {
      "PrivateIpAddress": "1.1.1.1",
      "Tags": [
        {
          "Value": "Daily",
          "Key": "Backup"
        },
        {
          "Value": "System",
          "Key": "Name"
        },
        {
          "Value": "YES",
          "Key": "Is_in_Domain"
        },
        {
          "Value": "PROD",
          "Key": "Type"
        }
      ]
    }
  ]
}

这是当前输出:

{
  "ip": "1.1.1.1",
  "name": "System"
}
{
  "ip": "2.2.2.2",
  "name": "host"
}
{
  "ip": "3.3.3.3",
  "name": "slog"
}

所需的输出:

{
  "ip": "1.1.1.1",
  "name": "System",
  "type": "PROD"
}
{
  "ip": "2.2.2.2",
  "name": "host",
  "type": "PROD"
}
{
  "ip": "3.3.3.3",
  "name": "slog",
  "type": "PROD"
}

正确的方法是什么?谢谢.

What is the right way to do it? Thanks.

推荐答案

没有正确"的方法，但是有一些方法可以使您更轻松.

There's no "right" way to do it, but there are approaches to take that can make things easier for you.

标签已经采用了简化转换为对象(它们是对象条目)的格式.将标签转换为对象，以便于访问属性.

The tags are already in a format that makes converting to objects simple (they're object entries). Convert the tags to an object for easy access to the properties.

$ jq '.Instances[]
    | .Tags |= from_entries
    | {
        ip:   .PrivateIpAddress,
        name: .Tags.Name,
        type: .Tags.Type
      }' file

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