secure disk wipe ubuntu

Securely erasing a storage device, there's a command-line utility called shred, which overwrites data in a file or a whole device with random bits, making it nearly impossible to recover.
How do I securely wipe drive/partition using a randomly-seeded AES cipher from OpenSSL?
First of all, you need to identify the name of the device.For example, if your hard drive named as games pro evolution soccer 2008 /dev/sda, then type the following command: # shred -n 5 -vz /dev/sda.The only way to make recovering games for pc full version 2010 chess of your sensitive data nearly impossible is to overwrite (wipe or shred) the data with several defined patterns.v : Show progress.I do not issue any guarantee that this will work for you!Then select Device - Create partition table to create a partition table on the device.You can use sudo fdisk -l to list all connected storage devices, and find your external hard drive there.It overwrites hard disks, files, and other devices with repeating patterns intended to make recovering data from these devices more difficult.The easiest way is to install GParted and use it: sudo apt-get install gparted gksu gparted, choose your device in the upper-right corner list.After this, you would have to repartition the device.You can now wipe any disk including Windows, Linux, Mac OS X or Unix-like system.
Sample outputs: Fig.01: Use shred to securely delete simple files including hard disks.Unmount all currently mounted partitions on that device, if any.You might fifa 13 crack file notice the following: caution: Note that shred relies on a very important assumption: that the file system overwrites data in place.The dd command can be used as follows: # dd if/dev/urandom of/dev/disk/TO/wipe bs4096, wipe a /dev/sda disk, enter: # dd if/dev/urandom of/dev/sda bs4096, sample outputs: Gif 01: Wipe a disk using gnu/dd command.Is there any open source software out there that can help me permanently erase my hard disk?For certain classes of data, organizations may be willing to do the next best thing which is scribble on all the bytes until retrieval would require heroic efforts in a lab.However, I recommend using shred command or wipe command or scrub command.Some people claim, this is not enough and one should overwrite hard disks multiple times and with more elaborate patterns ( scrub(1) can do both of that as per the other answer but most will say once is enough, if an attacker wants to restore.If you take a look at shred's man page.How to use the wipe command.