How to shred entire directory (tree)

[opentux]

From the man page for find:

-execdir command {} +
Like -exec, but the specified command is run from the subdirec-
tory containing the matched file, which is not normally the
directory in which you started find. This a much more secure
method for invoking commands, as it avoids race conditions dur-
ing resolution of the paths to the matched files.

A more complete discussion of the security considerations around -exec can be found in the info file for findutils - File: find.info, Node: Race Conditions with -exec.
The security considerations here relate to race conditions, and file systems changing as they are being processed by find. In a single user system, where none of the files are being accessed simultaneously by other users, you are at a lower risk of exposure to these race conditions. In such cases, -exec 'should' be safe for your purposes.

[TheUser20]

Here's a quick perl script that can do recursive shred,
name the file shredR.pl

"copy code"
open a terminal
"vi shredR.pl"
"i"
"shift insert" paste
"exc"
":wq"
"chmod 700 shredR.pl"

run it in the super directory of the directory you wish to shred, or give the full path to the directory you wish to shred.

./shredR.pl [directory name] [number of times you wish to write over the files]

#!/usr/bin/perl

@lines = `ls -Rt1A $ARGV[0]`;
$size = scalar(@files);
$i = 0;
$line = "";
@cut = "";
@cut2 = "";
@cut3 = "";
$size3 = 0;
$size4 = 0;
$directory = "";

foreach $line (@lines)
{
 chomp($line);
 if($line =~ m/\//)
 {
   @cut = split(':', $line);
   $cut[0] =~ s/ /*/g;

   $directory = $cut[0];
 }
 elsif($line ne "" || $line ne " " || $line ne "\n")
 {
 $line =~ s/ /*/g;
 system("shred -fvuz -n $ARGV[1] $directory/$line");
 }
 system("rm -fr $ARGV[0]");
}