Thus, only root and members of the usershares group can use this directory; by virtue of the sticky bit, only the owner of a file can delete the file.

因此，只有root和usershare s组的成员能够使用这个目录；通过粘贴位设置，只有文件的拥有者才能够删除该文件。

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The technique might look a bit annoying at first glance, but it clearly minimizes the error rate for users who delete sensitive data by mistake.

乍一看该技术也许看起来有点令人生厌，但是对于错误地删除掉敏感数据的用户来说，这无疑把出错的几率降到最低。

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The program has nested exception handling to deal with situations in which it looks up nonexistent data to delete, making the program a bit more robust.

其中嵌入了应对没有可供删除的数据这种情况的异常处理语句，使得程序更健壮一点。

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