当变量具有特殊字符时如何使用jq [英] How to use jq when the variable has special characters

问题描述

我正在努力使以下内容能够正常工作&不是，请帮帮我:

I'm trying to get the following to work & it's not, help me please:

curl -s 'https://cryptofresh.com/api/asset/markets?asset=MKR' | jq .OPEN.BTC

有问题的变量包含一个句点，我几乎尝试了一切以逃避句点&&还尝试将其用引号引起来；不行;这是我要从中提取的变量(我在运行jq时没有任何过滤器，并在此处截断了输出以显示我的需要.在此先感谢以后的问题解决者！

The variable in question includes a period, I tried just about everything to escape the period && also tried surrounding it in quotes; no go ; this is the variable I'm looking to pull from (I ran jq without any filters, and truncated the output here to show what I need. Thanks in advance future problem solver!

curl -s 'https://cryptofresh.com/api/asset/markets?asset=MKR' | jq
....
 "OPEN.BTC": {
"volume24": 0.932166,
"price": 0.09995,
"updated": "2016-05-04T03:03:29.000Z"
},
....

推荐答案

当键包含对标识符无效的字符时，您必须引用该名称.

When a key contains characters that are invalid for identifiers, you'll have to quote the name.

."OPEN.BTC"

或者对于旧版本的jq，使用索引.

Or for older versions of jq, use an index.

.["OPEN.BTC"]

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