Announcing: A JSONPath implementation written in Bash - JSONPath.sh.
It implements the JSONPath standard as written at http://goessner.net/ and was based on the original JSON.sh code from https://github.com/dominictarr/JSON.sh.
Note that JSON output is not arrays as with other JSONPath processors.
The script and documentation can be found at https://github.com/mclarkson/JSONPath.sh