本文為英文版的機器翻譯版本，如內容有任何歧義或不一致之處，概以英文版為準。

# 搭配使用 `DescribeFlowLogs` 與 CLI
<a name="example_ec2_DescribeFlowLogs_section"></a>

下列程式碼範例示範如何使用 `DescribeFlowLogs`。

------
#### [ CLI ]

**AWS CLI**  
**範例 1：描述所有流程日誌**  
下列 `describe-flow-logs` 範例顯示所有流程日誌的詳細資訊。  

```
aws ec2 describe-flow-logs
```
輸出：  

```
{
    "FlowLogs": [
        {
            "CreationTime": "2018-02-21T13:22:12.644Z",
            "DeliverLogsPermissionArn": "arn:aws:iam::123456789012:role/flow-logs-role",
            "DeliverLogsStatus": "SUCCESS",
            "FlowLogId": "fl-aabbccdd112233445",
            "MaxAggregationInterval": 600,
            "FlowLogStatus": "ACTIVE",
            "LogGroupName": "FlowLogGroup",
            "ResourceId": "subnet-12345678901234567",
            "TrafficType": "ALL",
            "LogDestinationType": "cloud-watch-logs",
            "LogFormat": "${version} ${account-id} ${interface-id} ${srcaddr} ${dstaddr} ${srcport} ${dstport} ${protocol} ${packets} ${bytes} ${start} ${end} ${action} ${log-status}"
        },
        {
            "CreationTime": "2020-02-04T15:22:29.986Z",
            "DeliverLogsStatus": "SUCCESS",
            "FlowLogId": "fl-01234567890123456",
            "MaxAggregationInterval": 60,
            "FlowLogStatus": "ACTIVE",
            "ResourceId": "vpc-00112233445566778",
            "TrafficType": "ACCEPT",
            "LogDestinationType": "s3",
            "LogDestination": "arn:aws:s3:::my-flow-log-bucket/custom",
            "LogFormat": "${version} ${vpc-id} ${subnet-id} ${instance-id} ${interface-id} ${account-id} ${type} ${srcaddr} ${dstaddr} ${srcport} ${dstport} ${pkt-srcaddr} ${pkt-dstaddr} ${protocol} ${bytes} ${packets} ${start} ${end} ${action} ${tcp-flags} ${log-status}"
        }
    ]
}
```
**範例 2：描述流程日誌的子集**  
下列 `describe-flow-logs` 範例使用篩選條件，僅顯示 Amazon CloudWatch Logs 中指定之日誌群組中流程日誌的詳細資訊。  

```
aws ec2 describe-flow-logs \
    --filter "Name=log-group-name,Values=MyFlowLogs"
```
+  如需 API 詳細資訊，請參閱《AWS CLI 命令參考》**中的 [DescribeFlowLogs](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/ec2/describe-flow-logs.html)。

------
#### [ PowerShell ]

**Tools for PowerShell V4**  
**範例 1：此範例描述日誌目的地類型為 's3' 的一或多個流程日誌**  

```
Get-EC2FlowLog -Filter @{Name="log-destination-type";Values="s3"}
```
**輸出：**  

```
CreationTime             : 2/25/2019 9:07:36 PM
DeliverLogsErrorMessage  :
DeliverLogsPermissionArn :
DeliverLogsStatus        : SUCCESS
FlowLogId                : fl-01b2e3d45f67f8901
FlowLogStatus            : ACTIVE
LogDestination           : arn:aws:s3:::amzn-s3-demo-bucket-dd-tata
LogDestinationType       : s3
LogGroupName             :
ResourceId               : eni-01d2dda3456b7e890
TrafficType              : ALL
```
+  如需 API 詳細資訊，請參閱《AWS Tools for PowerShell Cmdlet 參考 (V4)》**中的 [DescribeFlowLogs](https://docs.aws.amazon.com/powershell/v4/reference)。

**Tools for PowerShell V5**  
**範例 1：此範例描述日誌目的地類型為 's3' 的一或多個流程日誌**  

```
Get-EC2FlowLog -Filter @{Name="log-destination-type";Values="s3"}
```
**輸出：**  

```
CreationTime             : 2/25/2019 9:07:36 PM
DeliverLogsErrorMessage  :
DeliverLogsPermissionArn :
DeliverLogsStatus        : SUCCESS
FlowLogId                : fl-01b2e3d45f67f8901
FlowLogStatus            : ACTIVE
LogDestination           : arn:aws:s3:::amzn-s3-demo-bucket-dd-tata
LogDestinationType       : s3
LogGroupName             :
ResourceId               : eni-01d2dda3456b7e890
TrafficType              : ALL
```
+  如需 API 詳細資訊，請參閱《AWS Tools for PowerShell Cmdlet 參考 (V5)》**中的 [DescribeFlowLogs](https://docs.aws.amazon.com/powershell/v5/reference)。

------

如需 AWS SDK 開發人員指南和程式碼範例的完整清單，請參閱 [使用 SDK 建立 Amazon EC2 資源 AWS](sdk-general-information-section.md)。此主題也包含有關入門的資訊和舊版 SDK 的詳細資訊。