jq

jq is a lightweight and flexible command-line JSON processor that can be used to slice, filter, map and transform structured data.  jq is written in portable C, and it has no runtime dependencies. You can download a single binary and scp it to a machine of the same type.

jq is licensed under the MIT License.  It's documentation is licensed under the Creative Commons Attribution 3.0 Unported License

For further information on how to the use the tool, please refer to the tutorial  and the manual.