Some commands return much information in the output. You can filter the information as required.
Directions
This document describes how different filtering methods are used and their corresponding outcomes. The DescribeZones API of Cloud Virtual Machine (CVM) is used as an example in this document.
View the unfiltered output.
[root@VM_180_248_centos ~]# tccli cvm DescribeZones{"TotalCount": 4,"ZoneSet": [{"ZoneState": "AVAILABLE","ZoneId": "100001","Zone": "ap-guangzhou-1","ZoneName": "Guangzhou Zone 1"},{"ZoneState": "AVAILABLE","ZoneId": "100002","Zone": "ap-guangzhou-2","ZoneName": "Guangzhou Zone 2"},{"ZoneState": "AVAILABLE","ZoneId": "100003","Zone": "ap-guangzhou-3","ZoneName": "Guangzhou Zone 3"},{"ZoneState": "AVAILABLE","ZoneId": "100004","Zone": "ap-guangzhou-4","ZoneName": "Guangzhou Zone 4"}],"RequestId": "4fd313a6-155f-4c7a-bf86-898c02fcae02"}
View a specified field.
[root@VM_180_248_centos ~]# tccli cvm DescribeZones --filter TotalCount4
View the Nth sub-object of a specified object in array type.
Note:
On macOS, the error
zsh: no matches found: xxx may be returned after you run the following command. To resolve this issue, enclose the filter in single quotes.[root@VM_180_248_centos ~]# tccli cvm DescribeZones --filter ZoneSet[0]{"ZoneState": "AVAILABLE","ZoneId": "100001","Zone": "ap-guangzhou-1","ZoneName": "Guangzhou Zone 1"}
View a certain field of all the sub-objects with a certain name under the specified object in array type.
[root@VM_180_248_centos ~]# tccli cvm DescribeZones --filter ZoneSet[*].ZoneName["Guangzhou Zone 1","Guangzhou Zone 2","Guangzhou Zone 3","Guangzhou Zone 4"]
Filter the sub-objects in an array and display them with a new name.
Note:
The filter must be enclosed in single quotes.
[root@VM_180_248_centos ~]# tccli cvm DescribeZones --filter 'ZoneSet[*].{name:ZoneName, id:ZoneId}'[{"name": "Guangzhou Zone 1","id": "100001"},{"name": "Guangzhou Zone 2","id": "100002"},{"name": "Guangzhou Zone 3","id": "100003"},{"name": "Guangzhou Zone 4","id": "100004"}]
Yes
No
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