TIL about jo, why did I not know about that ten years ago $ jo details[author]=Dickens details[age]=dead books="$(jo -a 'Oliver Twist' 'Great Expectations'

TIL about jo, why did I not know about that ten years ago $ jo details[author]=Dickens details[age]=dead books="$(jo -a 'Oliver Twist' 'Great Expectations')" {"details":{"author":"Dickens","age":"dead"},"books":["Oliver Twist","Great Expectations"]}