有条件地替换值，添加注释

Question

jq 打印 csv，如下所示：

... | [.name, .userId, .groupId] | @csv'

打印什么：

"nodea","0","6"
"nodeb","1","0"

我如何处理它以获得“n/a”而不是 0，并且对于 >0 值适当的注释/注释，例如：

"nodea","n/a","group:6"
"nodeb","user:1","n/a"

在 jq 中可行还是仅在后处理中可行，例如。在 awk 中？谢谢

Answer 1

jq解决方案：

样本input.json：

[
    {
        "name": "nodea",
        "userId": 0,
        "groupId": 6
    },
    {
        "name": "nodeb",
        "userId": 1,
        "groupId": 0 
    }
]

---

jq -r 'def pr($k): if .[$k] > 0 then $k+":\(.[$k])" else "n/a" end;
      .[] | [ .name, pr("userId"), pr("groupId") ] | @csv' input.json

输出：

"nodea","n/a","groupId:6"
"nodeb","userId:1","n/a"