如何在Shell管道中使用`jq`? [英] How to use `jq` in a shell pipeline?

问题描述

我似乎无法让jq在Shell管道中表现为正常".例如:

I can't seem to get jq to behave "normally" in a shell pipeline. For example:

$ curl -s https://api.github.com/users/octocat/repos | jq | cat

仅打印其帮助文本即可得到jq.如果我尝试将jq的输出重定向到文件，则会发生相同的事情:

results in jq simply printing out its help text*. The same thing happens if I try to redirect jq's output to a file:

$ curl -s https://api.github.com/users/octocat/repos | jq > /tmp/stuff.json

jq是否确定是否不是从tty运行它而故意救助吗?如何防止这种行为，以便可以在管道中使用jq?

Is jq deliberately bailing out if it determines that it's not being run from a tty? How can I prevent this behavior so that I can use jq in a pipeline?

* _{(我意识到此示例包含对猫的无用使用； (仅用于说明目的)}

* _{(I realize this example contains a useless use of cat; it's for illustration purposes only)}

推荐答案

您需要提供一个过滤器作为参数.要通过未经修饰的jq提供的默认值以外的其他方式传递JSON，请使用标识过滤器.:

You need to supply a filter as an argument. To pass the JSON through unmodified other than the pretty printing jq provides by default, use the identity filter .:

curl -s https://api.github.com/users/octocat/repos | jq '.' | cat

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