bash jq：json 对象的输出数组
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时间：2020-09-08 22:20:37 来源:igfitidea点击:
jq: output array of json objects
提问by Mauricio Trajano
Say I have the input:
说我有输入：
{
"name": "John",
"email": "[email protected]"
}
{
"name": "Brad",
"email": "[email protected]"
}
How do I get the output:
我如何获得输出：
[
{
"name": "John",
"email": "[email protected]"
},
{
"name": "Brad",
"email": "[email protected]"
}
]
I tried both:
我都试过：
jq '[. | {name, email}]'
and
和
jq '. | [{name, email}]'
which both gave me the output
两者都给了我输出
[
{
"name": "John",
"email": "[email protected]"
}
]
[
{
"name": "Brad",
"email": "[email protected]"
}
]
I also saw no options for an array output in the documentations, any help appreciated
我在文档中也没有看到数组输出的选项，任何帮助表示赞赏
回答by chepner
Use slurp mode:
使用 slurp 模式：
o --slurp/-s: Instead of running the filter for each JSON object in the input, read the entire input stream into a large array and run the filter just once.
o --slurp/-s: Instead of running the filter for each JSON object in the input, read the entire input stream into a large array and run the filter just once.
$ jq -s '.' < tmp.json
[
{
"name": "John",
"email": "[email protected]"
},
{
"name": "Brad",
"email": "[email protected]"
}
]
