#!/bin/bash
sudo clear
echo "DRIVE WIPE SCRIPT"
echo
echo "FDISK"
sudo fdisk -l
echo
echo "LSBLK"
sudo lsblk
echo
echo -n 'ENTER DRIVE LETTER + PARTITION NUMBER (SD[L][N]):'
read x
echo WIPE SD$x WITH
echo -n 
'1 - ZEROS
2 - RANDOM
0 - EXIT'
read w
case $w in 
1)
echo WIPING SD$x WITH ZEROS
sudo dd if=/dev/zero of=/dev/sd$x bs=1M status=progress conv=noerror,sync
echo 'Done.'
read -n1
clear
./dws
;;
2)
echo WIPING SD$x WITH RANDOMS
sudo dd if=/dev/urandom of=/dev/sd$x bs=1M status=progress conv=noerror,sync
echo 'Done.'
read -n1
clear
./dws
;;
0)
clear
exit
;;
*)
clear
echo "Invalid input" 
./dws
;;
esac