Raymond reminds us that there is no "Copy" access mask because copying is not a fundamental file operation.

Copying a file is just reading it into memory and then writing it out. Once the bytes come off the disk, the file system has no control any more over what the user does with them.

Something to keep in mind when designing your web applications. Once you send something to the client, you inherently give up control over what can be done with that information.

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