On Wed, 1 Jan 2003 10:10:35 +0200, Christoph Bugel <[EMAIL PROTECTED]> wrote:
>
> interesting.. I didn't know that cp overwrites the existing inode.
> but indeed it does, it simply *truncates* the target file:
>
> $ strace cp /bin/sleep mysleep 2>&1 | grep open.*sleep
> open("/bin/sleep", O_RDONLY|O_LARGEFILE) = 3
> open("mysleep", O_WRONLY|O_TRUNC|O_LARGEFILE) = 4
>
> indeed, rm or mv will 'fix' the problem.
The point of using `cp' (or `cat >') is to keep the current (old) file
permissions. Using `rm + cp' or `mv' create the new file with your
default permissions or the moved file permissions.
Ehud.
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