Json使用Linux Shell脚本进行解析

Question

Here is the json file I want to parse. I specially need the json objects inside the json array. Shell script is the only tool I can use right now.

{
  "entries": [
    {
      "author": {
        "value": "plugin-demo Administrator",
        "origin": "http://localhost:8080/webservice/person/18"
      },
      "creator": {
        "value": "plugin-demo Administrator",
        "origin": "http://localhost:8080/webservice/person/18"
      },
      "creationDate": "2015-11-04T15:14:18.000+0600",
      "lastModifiedDate": "2015-11-04T15:14:18.000+0600",
      "model": "http://localhost:8080/plugin-editorial/model/281/football",
      "payload": [
        {
          "name": "basic",
          "value": "Real Madrid are through"
        }
      ],
      "publishDate": "2015-11-04T15:14:18.000+0600"
    },
    {
      "author": {
        "value": "plugin-demo Administrator",
        "origin": "http://localhost:8080/webservice/person/18"
      },
      "creator": {
        "value": "plugin-demo Administrator",
        "origin": "http://localhost:8080/webservice/person/18"
      },
      "creationDate": "2015-11-04T15:14:18.000+0600",
      "lastModifiedDate": "2015-11-04T15:14:18.000+0600",
      "model": "http://localhost:8080/plugin-editorial/model/281/football",
      "payload": [
        {
          "name": "basic",
          "value": "Real Madrid are through"
        }
      ],
      "publishDate": "2015-11-04T15:14:18.000+0600"
    }
  ]
}

How can I do it in shell script?

Answer 1

Use something, anything other than shell.

Since the original answer I've found jq :

jq '.entries[0].author.value' /tmp/data.json 
"plugin-demo Administrator"

Install node.js

node -e 'console.log(require("./data.json").entries[0].author.value)'

Install jsawk

cat data.json | jsawk 'return this.entries[0].author.value'

Install Ruby

ruby -e 'require "json"; puts JSON.parse(File.read("data.json"))["entries"][0]["author"]["value"]'

Just don't try and parse it in shell script.