我有一个JSON输出,我需要从中提取一些Linux中的参数。
这是json的输出:
{
"OwnerId":"121456789127",
"ReservationId":"r-48465168",
"Groups":[
],
"Instances":[
{
"Monitoring":{
"State":"disabled"
},
"PublicDnsName":null,
"RootDeviceType":"ebs",
"State":{
"Code":16,
"Name":"running"
},
"EbsOptimized":false,
"LaunchTime":"2014-03-19T09:16:56.000Z",
"PrivateIpAddress":"10.250.171.248",
"ProductCodes":[
{
"ProductCodeId":"aacglxeowvn5hy8sznltowyqe",
"ProductCodeType":"marketplace"
}
],
"VpcId":"vpc-86bab0e4",
"StateTransitionReason":null,
"InstanceId":"i-1234576",
"ImageId":"ami-b7f6c5de",
"PrivateDnsName":"ip-10-120-134-248.ec2.internal",
"KeyName":"Test_Virginia",
"SecurityGroups":[
{
"GroupName":"Test",
"GroupId":"sg-12345b"
}
],
"ClientToken":"VYeFw1395220615808",
"SubnetId":"subnet-12345314",
"InstanceType":"t1.micro",
"NetworkInterfaces":[
{
"Status":"in-use",
"SourceDestCheck":true,
"VpcId":"vpc-123456e4",
"Description":"Primary network interface",
"NetworkInterfaceId":"eni-3619f31d",
"PrivateIpAddresses":[
{
"Primary":true,
"PrivateIpAddress":"10.120.134.248"
}
],
"Attachment":{
"Status":"attached",
"DeviceIndex":0,
"DeleteOnTermination":true,
"AttachmentId":"eni-attach-9210dee8",
"AttachTime":"2014-03-19T09:16:56.000Z"
},
"Groups":[
{
"GroupName":"Test",
"GroupId":"sg-123456cb"
}
],
"SubnetId":"subnet-31236514",
"OwnerId":"109030037527",
"PrivateIpAddress":"10.120.134.248"
}
],
"SourceDestCheck":true,
"Placement":{
"Tenancy":"default",
"GroupName":null,
"AvailabilityZone":"us-east-1c"
},
"Hypervisor":"xen",
"BlockDeviceMappings":[
{
"DeviceName":"/dev/sda",
"Ebs":{
"Status":"attached",
"DeleteOnTermination":false,
"VolumeId":"vol-37ff097b",
"AttachTime":"2014-03-19T09:17:00.000Z"
}
}
],
"Architecture":"x86_64",
"KernelId":"aki-88aa75e1",
"RootDeviceName":"/dev/sda1",
"VirtualizationType":"paravirtual",
"Tags":[
{
"Value":"Server for testing RDS feature in us-east-1c AZ",
"Key":"Description"
},
{
"Value":"RDS_Machine (us-east-1c)",
"Key":"Name"
},
{
"Value":"1234",
"Key":"Cost.centre"
},
{
"Value":"Jyoti Bhanot",
"Key":"Owner"
}
],
"AmiLaunchIndex":0
}
]
}
预期输出:
Instance id Name cost centre Owner
i-1234576 RDS_Machine (us-east-1c) 1234 Jyoti Bhanot
我想写一个文件,其中包含像示例id这样的标题,像名称,成本中心,所有者这样的标签。下面,来自json输出的某些值。这里给出的输出只是一个例子。
我如何使用sed和awk来做到这一点?
任何线索都很感激。
谢谢
2条答案
按热度按时间lf3rwulv1#
下面是一个使用jsawk的示例。参考:Parsing JSON with Unix tools
设置:
首先从https://github.com/micha/jsawk下载**
jsawk
**:在使用jsawk之前,你可能需要先安装
js-devel
。我使用的是Fedora,所以我所做的是:测试:
我将你的JSON输出样本复制到一个文本文件中。名为
sample.json
。这里有一个从你的JSON输出样本中获取值的样本:对于来自URL的JSON数据,您可以使用
curl http://someserver.com/data.json
而不是cat
:你可以在你的
bash
文件中使用这些命令来生成一个包含你想要的字符串/文本的新文件。你可以从我在这里提供的GitHub链接中阅读更多关于jsawk
的信息。这是你要找的吗
vm0i2vca2#
纯Bash 3.2+,无依赖(如jq、python、grep等):
输出:
Try it。