Hi Bob, I think you hit it. Googleing I found the following: "Only a limited number of utilities are chflags aware. Some of these tools include ls(1), cp(1), find(1), install(1), dump(8), and restore(8). In particular a tool which is not currently chflags aware is the pax(1) utility."
And following your points, ditto just would have to chflags, when zipping/unzipping and it doesn't count to these kind of tools. Thanks for bringing me on the way to understanding :) Tiemo > -----Ursprüngliche Nachricht----- > Von: [email protected] [mailto:use-revolution- > [email protected]] Im Auftrag von Bob Sneidar > Gesendet: Dienstag, 4. Mai 2010 20:22 > An: How to use Revolution > Betreff: Re: AW: AW: need advice for keeping file flags in a zip > > I suspect that Ditto, when making a copy is not actually making the > copy itself, but telling the OS to do it. It would make sense that the > OS, when making a copy, would preserve all the appropriate OS flags. > > A zip program on the other hand, has to create it's own compressed file > structure inside the file the OS knows about. It would then be up to > the developer to set the flags appropriately, as the OS has no part to > play with what is going on inside the compressed file. But I don't > speak from real knowledge, but rather from reason based on the years of > knowledge I have with computers. And reason, however good it is will > not get you to the point of knowing. > > Bob > > > On May 4, 2010, at 10:56 AM, Tiemo Hollmann TB wrote: > > > Hi Bob, > > interesting point of view. > > But if you use ditto to make just a copy of that locked file, it does > make a > > copy WITH the locked flag. Just not when zipping. So where is the > > difference? In both cases it creates a "new file". Obviously it has > > something to do with the zip container. Perhaps a zip file can't > carry any > > flag or at least this uchg flag? That is too deep in the system for > me, > > without any unix know how. > > Tiemo > > > >> -----Ursprüngliche Nachricht----- > >> Von: [email protected] [mailto:use-revolution- > >> [email protected]] Im Auftrag von Bob Sneidar > >> Gesendet: Dienstag, 4. Mai 2010 19:26 > >> An: How to use Revolution > >> Betreff: Re: AW: need advice for keeping file flags in a zip > >> > >> My gut feeling is that because zipping and unzipping files do not > >> literally move the files, but rather create new copies of the > original, > >> it would be up to the zip application developer to reset flags to > the > >> original file's state. The OS is doing exactly what it is being told > to > >> do by the Zip application, and that is to create a file, and then > write > >> stuff to it. If you think about it for a moment, what would happen > if > >> the OS was told to create a new file with the locked attribute on, > and > >> then told to write data to it? Why, the OS would say, "Sorry chum, > >> can't do that. You see, it's locked." > >> > >> Bob > > > > _______________________________________________ > > use-revolution mailing list > > [email protected] > > Please visit this url to subscribe, unsubscribe and manage your > subscription preferences: > > http://lists.runrev.com/mailman/listinfo/use-revolution > > _______________________________________________ > use-revolution mailing list > [email protected] > Please visit this url to subscribe, unsubscribe and manage your > subscription preferences: > http://lists.runrev.com/mailman/listinfo/use-revolution _______________________________________________ use-revolution mailing list [email protected] Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-revolution
