Re: Help with (relatively) securely deleting files?

From: Bodo Eggert (7eggert_at_7eggert.dyndns.org)
Date: 04/10/05

  • Next message: Bodo Eggert: "Re: Help with (relatively) securely deleting files?" 
    Date: Sun, 10 Apr 2005 22:42:07 +0200

    Bev A. Kupf <bevakupf@myhome.net> wrote:

    > On Sun, 10 Apr 2005 21:13:03 +0200,
    > Bodo Eggert (7eggert@7eggert.dyndns.org) wrote:
    >>
    >> see man shred.
    >
    > Unfortunately GNU shred is not on this system.

    Is a C compiler on that system?

    If not, maybe you can use a perlscript like

    #!/usr/bin/perl -wsT
    loop: for my $file (@ARGV) {
            if(-f $file) {
                    for my $pattern
                            ("\xff","\x55","\xaa","\x00","\xdb","\x00") {
                            if(!sysopen(F, $file, O_RDWR|O_SYNC|O_BINARY) {
                                    warn("open($file): $!");
                                    next loop;
                            }
                            print F $pattern x (-s $file);
                    }
            }
            close(F); # shouldn't be needed here
    }

    This is basically shred minus the random data pass. 

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