如何使用shell脚本从json字符串grep指定的字段值 [英] How to grep the specific field value from json string using shell script

问题描述

下面是文件中可用的JSON字符串，我需要在其中提取外壳脚本中 status 的值.

Below is my JSON string available in file, out of which I need to extract the value for status in shell script.

预期输出: status = success

response.json

{"eventDate":null,"dateProccessed":null,"fileName":null,"status":"success"}

如果您需要任何信息，请告诉我

Please let me know, if you need any information

推荐答案

查看 jq .这是一个非常方便的json解析器.

Look into jq. It is a very handy json parser.

如果您只想提取状态，则可以执行以下操作:

If you want to extract just the status you can do something like:

jq -r '.status' response.json

# output
success

您也可以设置输出格式以遵循所需的结果.

You can format your output as well to follow the results you want.

jq -r '"status=\(.status)"' response.json

# output
status=success

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