解析bash中的JSON文件

Question

我有下面的JSON文件

[
    {
        "bw-parallel-streams": "1",
        "destination": "198.124",
        "event-types": [
            {
                "base-uri": "/esmond/perfsonar/archive/dfbd05cef48c4111b9da3cc1238f74ad/throughput-subintervals/base",
                "event-type": "throughput-subintervals",
                "summaries": [],
                "time-updated": 1423675036
            },
            {
                "base-uri": "/esmond/perfsonar/archive/dfbd05cef48c4111b9da3cc1238f74ad/failures/base",
                "event-type": "failures",
                "summaries": [],
                "time-updated": null
            },
            {
                "base-uri": "/esmond/perfsonar/archive/dfbd05cef48c4111b9da3cc1238f74ad/packet-retransmits/base",
                "event-type": "packet-retransmits",
                "summaries": [],
                "time-updated": 1423675036
            },
            {
                "base-uri": "/esmond/perfsonar/archive/dfbd05cef48c4111b9da3cc1238f74ad/throughput/base",
                "event-type": "throughput",
                "summaries": [
                    {
                        "summary-type": "average",
                        "summary-window": "86400",
                        "time-updated": 1423675036,
                        "uri": "/esmond/perfsonar/archive/dfbd05cef48c4111b9da3cc1238f74ad/throughput/averages/86400"
                    }
                ],
                "time-updated": 1423675036
            },
            {
                "base-uri": "/esmond/perfsonar/archive/dfbd05cef48c4111b9da3cc1238f74ad/packet-retransmits-subintervals/base",
                "event-type": "packet-retransmits-subintervals",
                "summaries": [],
                "time-updated": 1423675036
            }
        ],
        "input-destination": "wash-pt1.es.net",
        "input-source": "128.143",
        "ip-transport-protocol": "tcp",
        "measurement-agent": "128.143.231.161",
        "metadata-count-total": 1,
        "metadata-key": "dfbd05cef48c4111b9da3cc1238f74ad",
        "source": "128.143.",
        "subject-type": "point-to-point",
        "time-duration": "20",
        "time-interval": "21600",
        "tool-name": "bwctl/iperf3",
        "uri": "/esmond/perfsonar/archive/dfbd05cef48c4111b9da3cc1238f74ad/"
    }
]

我想根据事件类型检索基uri。
我正在写一个bash脚本来实现这一点。我以前从未使用过JSON文件或编写过python代码，因此如果我的问题显得如此幼稚，我很抱歉。我可以在Bash中这样做吗？如果我使用python，它会更容易些？
谢谢你

Answer 1

我使用的是jshon，我相信它可以在ubuntu的存储库中找到：

apt-get install jshon

我还没有测试过，但您需要做的是：

^{pr2}$

可以打印1423675036

更多信息请参见此处：http://kmkeen.com/jshon/