# Use `DescribeDhcpOptions` with a CLI
<a name="example_ec2_DescribeDhcpOptions_section"></a>

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

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

**AWS CLI**  
**Example 1: To describe your DHCP options**  
The following `describe-dhcp-options` example retrieves details about your DHCP options.  

```
aws ec2 describe-dhcp-options
```
Output:  

```
{
    "DhcpOptions": [
        {
            "DhcpConfigurations": [
                {
                    "Key": "domain-name",
                    "Values": [
                        {
                            "Value": "us-east-2.compute.internal"
                        }
                    ]
                },
                {
                    "Key": "domain-name-servers",
                    "Values": [
                        {
                            "Value": "AmazonProvidedDNS"
                        }
                    ]
                }
            ],
            "DhcpOptionsId": "dopt-19edf471",
            "OwnerId": "111122223333"
        },
        {
            "DhcpConfigurations": [
                {
                    "Key": "domain-name",
                    "Values": [
                        {
                            "Value": "us-east-2.compute.internal"
                        }
                    ]
                },
                {
                    "Key": "domain-name-servers",
                    "Values": [
                        {
                            "Value": "AmazonProvidedDNS"
                        }
                    ]
                }
            ],
            "DhcpOptionsId": "dopt-fEXAMPLE",
            "OwnerId": "111122223333"
        }
    ]
}
```
For more information, see [Working with DHCP Option Sets](https://docs.aws.amazon.com/vpc/latest/userguide/VPC_DHCP_Options.html#DHCPOptionSet) in the *AWS VPC User Guide*.  
**Example 2: To describe your DHCP options and filter the output**  
The following `describe-dhcp-options` example describes your DHCP options and uses a filter to return only DHCP options that have `example.com` for the domain name server. The example uses the `--query` parameter to display only the configuration information and ID in the output.  

```
aws ec2 describe-dhcp-options \
    --filters Name=key,Values=domain-name-servers Name=value,Values=example.com \
    --query "DhcpOptions[*].[DhcpConfigurations,DhcpOptionsId]"
```
Output:  

```
[
    [
        [
            {
                "Key": "domain-name",
                "Values": [
                    {
                        "Value": "example.com"
                    }
                ]
            },
            {
                "Key": "domain-name-servers",
                "Values": [
                    {
                        "Value": "172.16.16.16"
                    }
                ]
            }
        ],
        "dopt-001122334455667ab"
    ]
]
```
For more information, see [Working with DHCP Option Sets](https://docs.aws.amazon.com/vpc/latest/userguide/VPC_DHCP_Options.html#DHCPOptionSet) in the *AWS VPC User Guide*.  
+  For API details, see [DescribeDhcpOptions](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/ec2/describe-dhcp-options.html) in *AWS CLI Command Reference*. 

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

**Tools for PowerShell V4**  
**Example 1: This example lists your DHCP options sets.**  

```
Get-EC2DhcpOption
```
**Output:**  

```
DhcpConfigurations                    DhcpOptionsId    Tag
------------------                    -------------    ---
{domain-name, domain-name-servers}    dopt-1a2b3c4d    {}
{domain-name, domain-name-servers}    dopt-2a3b4c5d    {}
{domain-name-servers}                 dopt-3a4b5c6d    {}
```
**Example 2: This example gets configuration details for the specified DHCP options set.**  

```
(Get-EC2DhcpOption -DhcpOptionsId dopt-1a2b3c4d).DhcpConfigurations
```
**Output:**  

```
Key                    Values
---                    ------
domain-name            {abc.local}
domain-name-servers    {10.0.0.101, 10.0.0.102}
```
+  For API details, see [DescribeDhcpOptions](https://docs.aws.amazon.com/powershell/v4/reference) in *AWS Tools for PowerShell Cmdlet Reference (V4)*. 

**Tools for PowerShell V5**  
**Example 1: This example lists your DHCP options sets.**  

```
Get-EC2DhcpOption
```
**Output:**  

```
DhcpConfigurations                    DhcpOptionsId    Tag
------------------                    -------------    ---
{domain-name, domain-name-servers}    dopt-1a2b3c4d    {}
{domain-name, domain-name-servers}    dopt-2a3b4c5d    {}
{domain-name-servers}                 dopt-3a4b5c6d    {}
```
**Example 2: This example gets configuration details for the specified DHCP options set.**  

```
(Get-EC2DhcpOption -DhcpOptionsId dopt-1a2b3c4d).DhcpConfigurations
```
**Output:**  

```
Key                    Values
---                    ------
domain-name            {abc.local}
domain-name-servers    {10.0.0.101, 10.0.0.102}
```
+  For API details, see [DescribeDhcpOptions](https://docs.aws.amazon.com/powershell/v5/reference) in *AWS Tools for PowerShell Cmdlet Reference (V5)*. 

------

For a complete list of AWS SDK developer guides and code examples, see [Create Amazon EC2 resources using an AWS SDK](sdk-general-information-section.md). This topic also includes information about getting started and details about previous SDK versions.