jo 1.3-2 (amd64 binary) in ubuntu groovy

 jo creates a JSON string on stdout from words given it as arguments
 or read from stdin. It can generate both arrays and objects. Here is
 a short example:
 .
 $ jo -p name=jo n=17 parser@0
 {
    "name": "jo",
    "n": 17,
    "parser": false
 }