如何在 JQ 中打印键和值？

Question

For example, if I have the data below

{
    "test1": {
        "name": "John"
    },
    "test2": {
        "name": "Jack"
    },
    "test3": {
        "name": "Jim"
    },
    "test4": {
        "name": "John"
    }
}

and I wanted to get all the items where the name property is John, in the following format

{
    "test1": {
        "name": "John"
    },
    "test4": {
        "name": "John"
    }
}

How would I go about doing this? If I use the following JQ command: .[] | select(.name | ascii_downcase | contains("john")) .[] | select(.name | ascii_downcase | contains("john")) it only returns

{
  "name": "John"
}
{
  "name": "John"
}

omitting the keys.

Answer 1

要保持原始结构，请使用 map_values ：

map_values(select(.name | ascii_downcase | contains("john")))

Answer 2

Use the update operator |= to (un)select each item while keeping the outer context:

jq '.[] |= select(.name | ascii_downcase | contains("john"))'

{
  "test1": {
    "name": "John"
  },
  "test4": {
    "name": "John"
  }
}

Demo