Pattern: Provide an automated Single Command rollback of changes after an unsuccessful deployment.

模式：当部署失败后，提供自动的 Single Command 更改回滚。

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Next, a ROLLBACK command is executed, which removes the changes.

接下来，将执行ROLLBACK命令，它将删除更改。

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The ROLLBACK command removes the changes and exits to the operating system.

ROLLBACK 命令将删除更改并退出至操作系统。

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