

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

# Use `DescribePatchBaselines` with a CLI
<a name="ssm_example_ssm_DescribePatchBaselines_section"></a>

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

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

**AWS CLI**  
**Example 1: To list all patch baselines**  
The following `describe-patch-baselines` example retrieves details for all patch baselines in your account in the current Region.  

```
aws ssm describe-patch-baselines
```
Output:  

```
{
    "BaselineIdentities": [
        {
            "BaselineName": "AWS-SuseDefaultPatchBaseline",
            "DefaultBaseline": true,
            "BaselineDescription": "Default Patch Baseline for Suse Provided by AWS.",
            "BaselineId": "arn:aws:ssm:us-east-2:733109147000:patchbaseline/pb-0123fdb36e334a3b2",
            "OperatingSystem": "SUSE"
        },
        {
            "BaselineName": "AWS-DefaultPatchBaseline",
            "DefaultBaseline": false,
            "BaselineDescription": "Default Patch Baseline Provided by AWS.",
            "BaselineId": "arn:aws:ssm:us-east-2:733109147000:patchbaseline/pb-020d361a05defe4ed",
            "OperatingSystem": "WINDOWS"
        },
        ...
        {
            "BaselineName": "MyWindowsPatchBaseline",
            "DefaultBaseline": true,
            "BaselineDescription": "My patch baseline for EC2 instances for Windows Server",
            "BaselineId": "pb-0ad00e0dd7EXAMPLE",
            "OperatingSystem": "WINDOWS"
        }
    ]
}
```
**Example 2: To list all patch baselines provided by AWS**  
The following `describe-patch-baselines` example lists all patch baselines provided by AWS.  

```
aws ssm describe-patch-baselines \
    --filters "Key=OWNER,Values=[AWS]"
```
**Example 3: To list all patch baselines that you own**  
The following `describe-patch-baselines` example lists all custom patch baselines created in your account in the current Region.  

```
aws ssm describe-patch-baselines \
    --filters "Key=OWNER,Values=[Self]"
```
For more information, see [About Predefined and Custom Patch Baselines](https://docs.aws.amazon.com/systems-manager/latest/userguide/sysman-patch-baselines.html) in the *AWS Systems Manager User Guide*.  
+  For API details, see [DescribePatchBaselines](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/ssm/describe-patch-baselines.html) in *AWS CLI Command Reference*. 

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

**Tools for PowerShell V4**  
**Example 1: This example lists all patch baselines.**  

```
Get-SSMPatchBaseline
```
**Output:**  

```
BaselineDescription                                             BaselineId                                                            BaselineName
-------------------                                             ----------                                                            ------------
Default Patch Baseline Provided by AWS.                         arn:aws:ssm:us-west-2:123456789012:patchbaseline/pb-04fb4ae6142167966 AWS-DefaultP...
Baseline containing all updates approved for production systems pb-045f10b4f382baeda                                                  Production-B...
Baseline containing all updates approved for production systems pb-0a2f1059b670ebd31                                                  Production-B...
```
**Example 2: This example lists all patch baselines provided by AWS. The syntax used by this example requires PowerShell version 3 or later.**  

```
$filter1 = @{Key="OWNER";Values=@("AWS")}
```
**Output:**  

```
Get-SSMPatchBaseline -Filter $filter1
```
**Example 3: This example lists all patch baselines with you as the owner. The syntax used by this example requires PowerShell version 3 or later.**  

```
$filter1 = @{Key="OWNER";Values=@("Self")}
```
**Output:**  

```
Get-SSMPatchBaseline -Filter $filter1
```
**Example 4: With PowerShell version 2, you must use New-Object to create each tag.**  

```
$filter1 = New-Object Amazon.SimpleSystemsManagement.Model.PatchOrchestratorFilter
$filter1.Key = "OWNER"
$filter1.Values = "AWS"

Get-SSMPatchBaseline -Filter $filter1
```
**Output:**  

```
BaselineDescription                     BaselineId                                                            BaselineName             DefaultBaselin
                                                                                                                                       e
-------------------                     ----------                                                            ------------             --------------
Default Patch Baseline Provided by AWS. arn:aws:ssm:us-west-2:123456789012:patchbaseline/pb-04fb4ae6142167966 AWS-DefaultPatchBaseline True
```
+  For API details, see [DescribePatchBaselines](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 all patch baselines.**  

```
Get-SSMPatchBaseline
```
**Output:**  

```
BaselineDescription                                             BaselineId                                                            BaselineName
-------------------                                             ----------                                                            ------------
Default Patch Baseline Provided by AWS.                         arn:aws:ssm:us-west-2:123456789012:patchbaseline/pb-04fb4ae6142167966 AWS-DefaultP...
Baseline containing all updates approved for production systems pb-045f10b4f382baeda                                                  Production-B...
Baseline containing all updates approved for production systems pb-0a2f1059b670ebd31                                                  Production-B...
```
**Example 2: This example lists all patch baselines provided by AWS. The syntax used by this example requires PowerShell version 3 or later.**  

```
$filter1 = @{Key="OWNER";Values=@("AWS")}
```
**Output:**  

```
Get-SSMPatchBaseline -Filter $filter1
```
**Example 3: This example lists all patch baselines with you as the owner. The syntax used by this example requires PowerShell version 3 or later.**  

```
$filter1 = @{Key="OWNER";Values=@("Self")}
```
**Output:**  

```
Get-SSMPatchBaseline -Filter $filter1
```
**Example 4: With PowerShell version 2, you must use New-Object to create each tag.**  

```
$filter1 = New-Object Amazon.SimpleSystemsManagement.Model.PatchOrchestratorFilter
$filter1.Key = "OWNER"
$filter1.Values = "AWS"

Get-SSMPatchBaseline -Filter $filter1
```
**Output:**  

```
BaselineDescription                     BaselineId                                                            BaselineName             DefaultBaselin
                                                                                                                                       e
-------------------                     ----------                                                            ------------             --------------
Default Patch Baseline Provided by AWS. arn:aws:ssm:us-west-2:123456789012:patchbaseline/pb-04fb4ae6142167966 AWS-DefaultPatchBaseline True
```
+  For API details, see [DescribePatchBaselines](https://docs.aws.amazon.com/powershell/v5/reference) in *AWS Tools for PowerShell Cmdlet Reference (V5)*. 

------