Shredding Files / Delete Files without being Possible Restored

These are the step:

• Find the file(s) and put it on the list

$ find -iname "*" -type f > /home/firmansyah/DELETE.txt

• Shred the Files "TahapII.doc"

$ shred -fzvu -n 3 "TahapII.doc"

• Shred all the Files in the directory

$ shred -fzvu -n 3 *

• Shred the Files using the list

$ shred -fzvu
     -n 3
     --random-source=/home/firmansyah/DELETE.txt perda_rtrw_paripurna.msg