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The uncopyable file would be a cross-platform file format that indicates that when the user tries to copy it, it should instead be moved. The file wouldn't be secure -- you could easily write a tool that would clone it. It's just that in a run-of-the-mill copy process the file gets moved rather than
copied.
Why?
Partly it's a 'why not?' kind of thing. I'd like a file that would do that.
Does it have a practical use? For me, yes. I carry around lots of files that I call work and use them on different computers. I have a system so that I know which copy is 'live' and which copies are backups. A file that only exists in the latest copy I have made would make that system simpler.
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Done. Hope you weren't expecting anything grander. |
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You could always cut and paste. |
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Robobust: Ah, but when I copy a whole directory, all the other files would copy except for this one file, which would move, leaving me with identical directories... apart from the the uncopyable file. |
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//'why not?'//
Because if your file became corrupted you wouldn't have a back-up. |
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If you do all your copy/move operations using the Windows shell, you could bake this. There's an API called ICopyHook that lets shell add-ins get a "peek" at any rename/copy/move operations before they happen. |
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DOS had a "move" command which handled this nicely. |
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Yes, and so does the Windows shell, and I'm pretty sure [st3f] is aware of that. This idea is about enforcing a particular behavior on a file, as chosen by the user, so mistakes are not made. (We don't really need the "read only" bit do we, for example? Just remember not to delete that file. Easy!). |
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//Ah, but when I copy a whole directory...// I suggest the inverse as the solution. Mark all other files as "read-only", then cut and paste the directory. Only the ones that aren't marked "read-only" will be erased from the original directory (I think, too lazy to test to see if this happens, or if Windows just yells moronic errors at me). |
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Doesn't the 'My Briefcase' have something of this behavior? |
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They did. Way back in Windows 95. |
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music sharing might get more difficult with such a system as well. |
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Briefcase still exists in Windows, it just doesn't have a desktop icon by default. I think the common use for it is to keep a laptop synchronized with a desktop. |
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