MarkyMarkMcDonald/car_example.sh

Last active May 2, 2017 17:18

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jq filter out children values

Raw

car_example.sh

echo '{"logs": ["All the cars are really good"],"info": {"cars": [{"name": "another car","type": "big"},{"name": "my car","type": "small"},{"name":"sweet ride", "type":"small"}]}}' | jq '.info.cars |= map(select(.type == "small"))

Author

MarkyMarkMcDonald commented May 2, 2017 •

edited

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When you have data like:

{
  "logs": [
    "All the cars are really good"
  ],
  "info": {
    "cars": [
      {
        "name": "another car",
        "type": "big"
      },
      {
        "name": "my car",
        "type": "small"
      },
      {
        "name": "sweet ride",
        "type": "small"
      }
    ]
  }
}

And want to filter all the non-small cars without losing your logs:

{
  "logs": [
    "All the cars are really good"
  ],
  "info": {
    "cars": [
      {
        "name": "my car",
        "type": "small"
      },
      {
        "name": "sweet ride",
        "type": "small"
      }
    ]
  }
}

you can use assignment + map + select:

jq '.info.cars |= map(select(.type == "small"))

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