jq

Gists Achieving the following conversion using jq. In this conversion, when key2 is true, updated_ is added to the value of key1 and the value of key2 is 2 times and key2a is added by adding updated_ to the value as new property. Conversion From [ { "key1": "value1", "key2": 123, "key3": true }, { "key1": "value2", "key2": 456, "key3": false }, { "key1": "value3", "key2": 789, "key3": true } ] To [ { "key1": "updated_value1", "key2": 246, "key2a": "updated_123", "key3": true }, { "key1": "value2", "key2": 456, "key3": false }, { "key1": "updated_value3", "key2": 1578, "key2a": "updated_789", "key3": true } ] Command $ echo '[{"key1":"value1","key2":123,"key3":true},{"key1":"value2","key2":456,"key3":false},{"key1":"value3","key2":789,"key3":true}]' | jq '[.