You have just seen how anyone with write permission to a directory can delete files in it.

您刚看到了任何有目录写权限的人如何删除目录中的文件。

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Write permission means a user with that permission can create or delete files in the directory.

写权限意味着用户使用该权限能够在目录中创建或者删除文件。

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Delete — delete files that don't exist in the source anymore in the destination directory.

delete——从目标目录中删除源目录中不再存在的文件。

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When the officer arrived, Venables was trying to delete files from his computer and remove the hard drive, prosecutors said.

BBC: Police handout in 1993 of Jon Venables

Within the past couple of weeks we saw a few strains of the Love Bug which were starting to delete files on the system.

BBC

You can also sift through your hard drive, delete temporary files and empty your recycle bin.

CNN: dotCOM Tools: Healthy PCs