**Example 1: To list all patch baselines** The following ``describe-patch-baselines`` example retreives 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*.