jq

Pretty print and query JSON data from the command line.

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Lightweight and flexible command-line JSON processor. Pretty print JSON, parse and query JSON data, filter and transform JSON on the command line.

jq

pretty print JSON in terminal$ echo '{"name":"john","age":30}' | jq

extract a specific field from JSON$ echo '{"name":"john","age":30}' | jq '.name'

filter JSON array by condition$ echo '[{"name":"john","age":30},{"name":"jane","age":25}]' | jq '.[] | select(.age > 26)'

transform JSON structure$ echo '{"first":"john","last":"doe"}' | jq '{name: (.first + " " + .last)}'

parse JSON from file and count array elements$ jq 'length' data.json