解析通过 curl 下载的 json 列表中的双引号值之间的值

Question

I have an online JSON file. Every time I try to download it. But I need to parse this JSON and get online ip's between double-quotes. Normally I can parse it with jq like .sample[].echo etc. but my list bigger than that example1,2..300 store more than 300 block data in it. I need to parse and get only inside of double quotes and get the all ip's.

By the way: I saw many questions on stackover but none of them related to filtering this kind of input

curl -L "https://sample.data.com/ip.json" -o 'ip.json' | *need to parsing method here*

Here is my JSON file:

{
  "sample1": {
    "echo": [
      "255.254.253.0/32"
    ],
    "delta": [
      "199.231.211.0/32"
    ]
  },
    "sample2": {
    "beta": [
      "250.123.124.0/32"
    ],
    "pre": [
      "122.156.243.0/32"
    ]
  },
  .
  .
  .
  .
  .
}

Answer 1

If you want to extract all strings that looks like an IP, then you can still use jq . If we "fix" your example JSON above, to be actual JSON, then running the following jq program:

.. | strings | match("\\d+\\.\\d+\\.\\d+\\.\\d+(?:/\\d+)?").string

over it would output:

"255.254.253.0/32"
"199.231.211.0/32"
"250.123.124.0/32"
"122.156.243.0/32"

I guess your don't want to keep the IPs quored, this can be handled with -r output flag

$ curl ... | jq -r '.. | strings | match("\\d+\\.\\d+\\.\\d+\\.\\d+(?:/\\d+)?").string'
255.254.253.0/32
199.231.211.0/32
250.123.124.0/32
122.156.243.0/32