Command option Sample:aws ec2 delete-launch-template-versions

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Deletes one or more versions of a launch template.Show details from next link. https://docs.aws.amazon.com/ja_jp/cli/latest/reference/ec2/delete-launch-template-versions.html

aws ec2 delete-launch-template-versions --launch-template-id lt-0abcd290751193123 --versions 1
    Launching an Instance from a Launch Template - Amazon Elastic Compute Cloud : http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-launch-templates.html
aws ec2 delete-launch-template-versions --launch-template-id lt-0abcd290751193123 --versions 1
    amazon-ec2-user-guide/ExamplePolicies_EC2.md at master 揃 awsdocs/amazon-ec2-user-guide 揃 GitHub : http://github.com/awsdocs/amazon-ec2-user-guide/blob/master/doc_source/ec2-launch-templates.md

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