系统管理员可以向用户提供su访问权，让用户能够切换为另一个用户，而不需要注销当前账户。

System administrators who provide su access to a user gives the ability for a user to switch or substitute to another user without logging out from their current account.

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注销当前经过身份验证的用户。

Logs out the currently authenticated user.

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注销当前经过身份验证的用户。

Logs out the currently authenticated user.

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