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Accepted
Samurai
Asked: 2022-05-05 22:13:16 +0800 CST

将 json 输出打印到单行，以逗号分隔

  • 772

我是 JQ 的新手，我有以下 json 文件

   [
   {
     "userId" : "jens",
     "firstName" : "jens",
     "lastName" : "jens",
     "emailAddress" : "[email protected]",
     "source" : "default",
     "status" : "active",
     "readOnly" : false,
     "roles" : [ "reader" ],
     "externalRoles" : [ ]
   }, {
     "userId" : "admin",
     "firstName" : "Administrator",
     "lastName" : "User",
     "emailAddress" : "[email protected]",
     "source" : "default",
     "status" : "changepassword",
     "readOnly" : false,
     "roles" : [ "app-admin" ],
     "externalRoles" : [ ]
   }]

现在我想按以下格式打印

"userId" : "jens","roles" : [ "reader" ]
"userId" : "admin", "roles" : [ "app-admin" ],

我怎样才能做到这一点？我试过这个命令

jq -r '.[].userId,.[].roles'

但它像下面一样分散数据

jens
admin
[]
[
  "reader",
  "app-admins",
]

请指导我如何获得上述输出。

json jq

1 个回答

  1. Best Answer

    如果你这样做

    jq -c '.[] | {userid: .userId, roles: .roles}'

    你会得到

    {"userid":"jens","roles":["reader"]}
{"userid":"admin","roles":["app-admin"]}

    该-c标志会将每个对象放在自己的行上，因此只要您没有嵌套对象，这应该可以满足您的要求。后处理，例如摆脱大括号：

    jq -c '.[] | {userid: .userId, roles: .roles}' | sed -e 's/^{//g' -e 's/}$//g'

    生产

    "userid":"jens","roles":["reader"]
"userid":"admin","roles":["app-admin"]
    • 2

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