How can I filter an array of objects using a condition using jq?

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To filter an array of objects using a condition using jq, you can use the select() function. The select() function takes a boolean expression that evaluates to true or false for each element in the array. Elements for which the expression evaluates to true are included in the output, while elements for which the expression evaluates to false are excluded.

Here's an example of an array of objects:

[
  {
    "name": "Alice",
    "age": 25
  },
  {
    "name": "Bob",
    "age": 30
  },
  {
    "name": "Charlie",
    "age": 35
  }
]

To filter this array to include only objects where the age property is greater than 30, you can use the following command:

jq '.[] | select(.age > 30)'

This will output the following:

{
  "name": "Charlie",
  "age": 35
}

The . in .[] is a shorthand for [], which tells jq to process each element in the input array. The select(.age > 30) expression selects only the elements where the age property is greater than 30.