jq中包含"@"和“-"的转义字段名称? [英] Escape field name in jq that contains '@' and '-'?

问题描述

输入JSON:

{
  "abc": {
    "@def-ghi": "value1",
    "xyz": "value2"
  }
}

我正在尝试获取字段@def-ghi的值.

And I'm trying to get value for field @def-ghi.

➜ $?=0 ➤ echo '{"abc": {"@def-ghi": "value1", "xyz": "value2"}}' | jq '.abc.xyz'
"value2"
➜ $?=0 ➤ echo '{"abc": {"@def-ghi": "value1", "xyz": "value2"}}' | jq '.abc.@def-ghi'
jq: error: syntax error, unexpected '-', expecting QQSTRING_START (Unix shell quoting issues?) at <top-level>, line 1:
.abc.@def-ghi
jq: 1 compile error
➜ $?=3 ➤

如何正确转义字段名称?

How to escape the field name properly?

推荐答案

您只需要引用密钥:

$ echo '...' | jq '.abc."@def-ghi"'
"value1"

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