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> A command-line JSON processor that uses a domain-specific language.
Output a JSON file, in pretty-print format:
jq . {file.json}
Output all elements from arrays (or all the values from objects) in a JSON file:
jq '.[]' {file.json}
Output elements from arrays which match provided filter:
jq '.[] | select(.{key_name} == {value})'
Read JSON objects from a file into an array, and output it (inverse of `jq .[]`):
jq --slurp . {file.json}
Output the first element in a JSON file:
jq '.[0]' {file.json}
Output the value of a given key of each element in a JSON text from stdin:
cat {file.json} | jq 'map(.{key_name})'
Output the value of multiple keys as a new JSON object (assuming the input JSON has the keys `key_name` and `other_key_name`):
cat {file.json} | jq '{{my_new_key}: .{key_name}, {my_other_key}: .{other_key_name}}'
Output the value of a given key to a string (and disable JSON output):
cat {file.json} | jq --raw-output '"some text: \(.{key_name})"'
> Copyright © 2014—present the tldr-pages team and contributors.
> This work is licensed under the Creative Commons Attribution 4.0 International License (CC-BY).
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