On Thu, Nov 11, 2010 at 2:02 PM, Matthias Apitz <g...@unixarea.de> wrote:
> What is the best method to overwrite the blocks of a given file with > bytes of 0x00, i.e. not to O_TRUNC away the blocks to the freelist of the > file system, but overwrite the old blocks? > > I've checked > > $ dd if=/dev/zero of=file count=4 > > but dd(1) opens the file with O_RDWR|O_CREAT|O_TRUNC which for sure will > give away the old blocks and adquire new blocks. Any idea? > Well there is "rm -P" although I'm not sure that accomplished exactly what you are looking for. -- Adam Vande More _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
