Secure delete instructions

For Windows

You can download SDelete from:

http://technet.microsoft.com/en-in/sysinternals/bb897443.aspx

Steps to install and use SDelete:

• Download the zip file and extract sdelete.exe file on your computer.

• SDelete is a command line utility that takes a number of options. In any given use:

  usage: sdelete.exe [-p passes] [-s] [-q]...

       sdelete.exe [-p passes] [-z|-c] [drive letter] ...  
   -a         Remove Read-Only attribute  
   -c         Clean free space  
   -p passes  Specifies number of overwrite passes (default is 1)  
   -q         Don't print errors (Quiet)  
   -s or -r   Recurse subdirectories  
   -z         Zero free space (good for virtual disk optimization)
  

To specify the file/folder to delete, you can:

• Type the full path to the file/folder.

• Go to the folder that contains the file/folder you want to delete, then type file/folder name.

For Linux (CentOS and Suse)

The Shred installation can be checked with:

Which shred

You can install Shred with this:

sudo apt-get install coreutils

Command

Shred –v –n 25 –u –z Filename

Example

Shred –v –n 25 –u –z /home/POS/YESEFT/MainReceipt.txt

For more detail, visit http://prefetch.net/blog/index.php/2006/07/25/shredding-files-on-centos-40/