使用jq创建JSON文件 [英] Create JSON file using jq
问题描述
我正在尝试通过执行以下命令来创建JSON文件:
I'm trying to create a JSON file by executing the following command:
jq --arg问候世界'{"hello":"$ greeting"}''>file.json
该命令被卡住,没有任何输入.虽然
This command stuck without any input. While
jq -n --arg问候世界'{"hello":"$ greeting"}''>file.json
无法正确解析.我只是想知道是否真的可以创建JSON文件.
jq -n --arg greeting world '{"hello":"$greeting"}' > file.json
doesn't parse correctly. I'm just wondering is really possible to create a JSON file.
推荐答案
因此您的代码无法正常工作,因为在双引号中包含了变量,该变量被视为字符串.这就是为什么它不起作用
So your code doesn't work because included the variable inside double quotes which gets treated as string. That is why it is not working
正如@Jeff Mercado所指出的,解决方案是
As @Jeff Mercado, pointed out the solution is
jq -n --arg greeting world '{"hello":$greeting}' > file.json
关于名称中的-
.这实际上是可能的.但是到目前为止,在jq的发行版本中尚不可用.如果在系统上编译jq的master分支.有一个名为 $ ARGS.named
的新变量,可用于访问信息.
About the -
in a name. This is actually possible. But as of now this is not available in released version of jq. If you compile the master branch of jq on your system. There is a new variable called $ARGS.named
which can be used to access the information.
我刚刚编译并检查了以下命令,它就像一个超级魅力
I just compiled and check the below command and it works like a charm
./jq -n --arg name-is tarun '{"name": $ARGS.named["name-is"]}'
{
"name": "tarun"
}
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