**Example 1: To display the default Windows patch baseline** The following ``get-default-patch-baseline`` example retrieves details for the default patch baseline for Windows Server. :: aws ssm get-default-patch-baseline Output:: { "BaselineId": "pb-0713accee01612345", "OperatingSystem": "WINDOWS" } **Example 2: To display the default patch baseline for Amazon Linux** The following ``get-default-patch-baseline`` example retrieves details for the default patch baseline for Amazon Linux. :: aws ssm get-default-patch-baseline \ --operating-system AMAZON_LINUX Output:: { "BaselineId": "pb-047c6eb9c8fc12345", "OperatingSystem": "AMAZON_LINUX" } For more information, see `About Predefined and Custom Patch Baselines` <https://docs.aws.amazon.com/systems-manager/latest/userguide/sysman-patch-baselines.html>__ and `Set an Existing Patch Baseline as the Default <https://docs.aws.amazon.com/systems-manager/latest/userguide/set-default-patch-baseline.html>`__ in the *AWS Systems Manager User Guide*.