Some time ago I made this: https://github.com/fabriceleal/Jsoned https://github.com/fabriceleal/Jsoned using node.js. It allows you to use Javascript expressio

Some time ago I made this: https://github.com/fabriceleal/Jsoned https://github.com/fabriceleal/Jsoned using node.js. It allows you to use Javascript expressions using a map/filter/reduce paradigm to edit the Json stream, like this: echo "[1,2,3]" | jsoned -m "' _ * 2 '" which will print "[2,4,6]" you can even put the javascript code in files. Check the wiki (incomplete) for documentation: https://github.com/fabriceleal/Jsoned/wiki/Usage https://github.com/fabriceleal/Jsoned/wiki/Usage