从AWS CLI获取单行JSON

Question

我有以下命令：

aws ec2 describe-regions --output=json

输出如下：

{
    "Regions": [
        {
            "Endpoint": "ec2.eu-north-1.amazonaws.com", 
            "RegionName": "eu-north-1"
        }, 
        {
            "Endpoint": "ec2.ap-northeast-2.amazonaws.com", 
            "RegionName": "ap-northeast-2"
        }, 
        {
            "Endpoint": "ec2.us-west-2.amazonaws.com", 
            "RegionName": "us-west-2"
        }
    ]
}

但是，这在机器上并不是真正可用的，我正在寻找单行输出，如下所示：

{"Regions":[{"Endpoint":"ec2.eu-north-1.amazonaws.com","RegionName":"eu-north-1"},{"Endpoint":"ec2.ap-northeast-2.amazonaws.com","RegionName":"ap-northeast-2"},{"Endpoint":"ec2.us-west-2.amazonaws.com","RegionName":"us-west-2"}]}

aws-cli中有一些命令可以让我使用机器可读的JSON吗？就像是：

aws ec2 describe-regions --output='json-for-machines'

？

Answer 1

使用jq像这样压缩它。

aws ec2 describe-regions --output=json| jq -c

输出变成

{"Regions":[{"Endpoint":"ec2.eu-north-1.amazonaws.com","RegionName":"eu-north-1"},{"Endpoint":"ec2.ap-northeast-2.amazonaws.com","RegionName":"ap-northeast-2"},{"Endpoint":"ec2.us-west-2.amazonaws.com","RegionName":"us-west-2"}]}

https://stedolan.github.io/jq/