Can you show jq examples?

Certainly! Here are some basic examples of how to use jq to process JSON data:

1. Basic JSON Output

If you have a JSON file (e.g., data.json), you can pretty-print it with:

jq . data.json

2. Extracting Specific Fields

To extract a specific field from a JSON object:

jq '.fieldName' data.json

3. Filtering Arrays

To filter an array of objects based on a condition:

jq '.items[] | select(.status == "active")' data.json

4. Combining Fields

To create a new object with selected fields:

jq '.items[] | {name: .name, id: .id}' data.json

5. Using Multiple Conditions

To filter based on multiple conditions:

jq '.items[] | select(.status == "active" and .type == "admin")' data.json

6. Counting Elements

To count the number of elements in an array:

jq '.items | length' data.json

7. Nested Objects

To access nested fields:

jq '.user.address.city' data.json

8. Working with Kubernetes Output

For example, to filter Kubernetes pod information:

kubectl get pods -o json | jq '.items[] | {name: .metadata.name, containers: .spec.containers[].name}'

These examples should give you a good starting point for using jq to manipulate and query JSON data. If you have specific JSON data you want to work with or need more examples, feel free to ask!