Berkeley CSUA MOTD:Entry 38677
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2025/04/04 [General] UID:1000 Activity:popular
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2005/7/18-19 [Computer/SW/Unix] UID:38677 Activity:nil
7/18    rookie unix permissions question:
        I have the following file -
        /sourcedir/filename
        I have group write permission to the file.
        I want to move it to another directory:
        /targetdir/filename
        On one system, the target file is owned by me after the
        move, but on another system, it's still under the
        original owner.  Why is that? What determines the
        ownership.  tia.
        \_ UID (not the username) and/or how you moved the file. In some
           cases, ownership will change, in others, the original UID is
           preserved. Note that the user name assoricated with a UID may
           be different on different systems.
           \_ I want the UID to be changed to my UID (rather than the
              original UID) after the move.  Is there a way to force that?
              \_ cp from to && rm from
              \_ cp and tar change it to your UID by default. Check your
                 aliases to see if you have the preserve options set. Also,
                 extracting with tar as root will preserve the UID.
                 \_ thanks for the workarounds.  does it help if I have
                    root access (i.e. is it something the root would be
                    able to configure)?  The file move is part of a perl script
                    that I would rather not change unless necessary.
                    \_ How are you doing the actual file copy?
        \_ Is the sticky bit for the directory turned on in the second
           case? That can cause the problem you are having. -ausman
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