jq:更改多个值

Question

我正试图用这一行改变多个json值

 jq '.two="newval", .three="newval"' my.json 

这是输入

{
  "one": {
    "val": 1
  },
  "two": "val",
  "three": "val",
  "four": "val"
}

但输出是2 jsons:

{
  "one": {
    "val": 1
  },
  "two": "newval",
  "three": "val",
  "four": "val"
}
{
  "one": {
    "val": 1
  },
  "two": "val",
  "three": "newval",
  "four": "val"
}

如何在一个项目中更改多个值和输出？

Answer 1

只需将逗号更改为竖线字符就可以了:

.two="newval" | .three="newval"

","用于连接流:A,B将发出A然后发出B.

Answer 2

这是一种使用+对象添加来更新多个成员的方法。

. + {two:"newtwo", three:"newthree"}

样本运行（假设中的数据data.json）

$ jq -M '. + {two:"newtwo", three:"newthree"}' data.json
{
  "one": {
    "val": 1
  },
  "two": "newtwo",
  "three": "newthree",
  "four": "val"
}

在jqplay.org上在线尝试