There are more AWS SDK examples available in the [AWS Doc SDK Examples](https://github.com/awsdocs/aws-doc-sdk-examples) GitHub repo.

# Use `AttachInstances` with a CLI
<a name="auto-scaling_example_auto-scaling_AttachInstances_section"></a>

The following code examples show how to use `AttachInstances`.

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#### [ CLI ]

**AWS CLI**  
**To attach an instance to an Auto Scaling group**  
This example attaches the specified instance to the specified Auto Scaling group.  

```
aws autoscaling attach-instances \
    --instance-ids {{i-061c63c5eb45f0416}} \
    --auto-scaling-group-name {{my-asg}}
```
This command produces no output.  
+  For API details, see [AttachInstances](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/autoscaling/attach-instances.html) in *AWS CLI Command Reference*. 

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#### [ PowerShell ]

**Tools for PowerShell V4**  
**Example 1: This example attaches the specified instance to the specified Auto Scaling group. Auto Scaling automatically increases the desired capacity of the Auto Scaling group.**  

```
Mount-ASInstance -InstanceId i-93633f9b -AutoScalingGroupName my-asg
```
+  For API details, see [AttachInstances](https://docs.aws.amazon.com/powershell/v4/reference) in *AWS Tools for PowerShell Cmdlet Reference (V4)*. 

**Tools for PowerShell V5**  
**Example 1: This example attaches the specified instance to the specified Auto Scaling group. Auto Scaling automatically increases the desired capacity of the Auto Scaling group.**  

```
Mount-ASInstance -InstanceId i-93633f9b -AutoScalingGroupName my-asg
```
+  For API details, see [AttachInstances](https://docs.aws.amazon.com/powershell/v5/reference) in *AWS Tools for PowerShell Cmdlet Reference (V5)*. 

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