disk_wiper

a disk wiper since shred is "lentoinculo" on some machines,

the old machine has achieved a ~100MB/s instead of shred's ~10MB/s

checks if disk has errors, in that case instructs you to physically destroy it poiting to the Model and Serial numbers to best identify the drive
checks if disk is an SSD (see TODO) and reminds you the dangers of SSD's flash reallocation
differentiate between SAS and SATA to retrieve the correct data
uses openssl to provide randomness (faster)
has a nice progress bar for the shredding and zeroing with timing of the current operation
automatically installs it's prerequisites (pv, smartmontools and hdparm)