Walk and transform all strings jq
Recursively lowercase all string values in a JSON document
jq 'walk(if type == "string" then ascii_downcase else . end)' data.json
more jq
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Pretty print JSON
cat data.json | jq '.'
Filter by field
cat data.json | jq '.items[] | select(.status == "Running")'
Extract specific fields
cat data.json | jq '[.items[] | {name:.metadata.name, ns:.metadata.namespace}]'
Group by field
cat data.json | jq 'group_by(.namespace) | map({ns: .[0].namespace, count: length})'
Delete a field
cat data.json | jq 'del(.metadata.managedFields)'