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Michael Kintzios: |
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> There's nothing wrong with dd, but I see no reason to create my own |
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> script to extend the basic dd functionality. I would rather use |
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> shred which does everything I want it to do - if only I can avoid |
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> the deletion if the device node itself. |
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Why -u? |
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>From the man page: |
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|
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======== |
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Delete FILE(s) if --remove (-u) is specified. The default is not to |
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remove the files because it is common to operate on device files |
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like /dev/hda, and those files usually should not be removed. |
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======== |
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|
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BTW, which is your filesystem? From the man page again: |
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|
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======== |
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CAUTION: Note that shred relies on a very important assumption: |
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that the filesystem overwrites data in place. This is the traditional |
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way to do things, but many modern filesystem designs do not |
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satisfy this assumption. The following are examples of |
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filesystems on which shred is not effective: |
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* log-structured or journaled filesystems, such as those |
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supplied with AIX and Solaris (and JFS, ReiserFS, XFS, Ext3, etc.) |
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======== |
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HTH |
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Sergio |
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-- |
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