Command option Sample:aws ssm describe-patch-groups

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Lists all patch groups that have been registered with patch baselines.Show details from next link. https://docs.aws.amazon.com/ja_jp/cli/latest/reference/ssm/describe-patch-groups.html

aws ssm describe-patch-groups --region us-east-2
    Walkthrough: Patch a Server Environment (AWS CLI) - AWS Systems Manager  : http://docs.aws.amazon.com/systems-manager/latest/userguide/patch-manager-cli-commands.html

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