CAUTION: Note that shred relies on a very important assumption: that the file system overwrites data in place. This is the traditional way to do things, but many modern file system designs do not satisfy this assumption.
man shred

If you decide to make sense to program this anyway, and decide to reinvent a security related tool without experience in the field, the manual above has some hints about implementation.

Wiki | CPAN Testers wiki

In reply to Re: Does this script securely delete data? by daxim
in thread Does this script securely delete data? by Anonymous Monk

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