Map JSON to JSON with a Ruby snippet.

gem install dorian-json-map

Also included in the aggregate gem:

gem install dorian

json-map [file ...] "ruby code"

Run json-map -h for generated option details and json-map -v for the installed version.

• Arrays map each element. Hashes map each key/value pair. The final JSON is pretty-printed.

echo '[1,2,3]' | json-map "it = it + 1"