autoshred disks inserted

autoshred-disks-inserted.md

Will automatically shred any inserted disks without warning.

Designed for raspberry pi.

sudo cp 91-shred_usb_device_rule.rules /etc/udev/rules.d/
sudo chmod 644 /etc/udev/rules.d/91-shred_usb_device_rule.rules
sudo cp shred_usb_device.sh /usr/local/bin/shred_usb_device.sh
sudo chmod 755 /usr/local/bin/shred_usb_device.sh

91-shred_usb_device_rule.rules

#place this file in /etc/udev/rules.d/91-shred_usb_device_rule.rules
#chmod 644 /etc/udev/rules.d/91-shred_usb_device_rule.rules

ACTION=="add", KERNEL=="sd?", RUN+="/usr/local/bin/shred_usb_device.sh /dev/$kernel"
#ACTION=="add", KERNEL=="sd?", RUN+="/usr/bin/shred -v /dev/$kernel 1>/dev/console 2>&1"

shred_usb_device.sh

#!/bin/bash

#place this file in /usr/local/bin/shred_usb_device.sh
#chmod 755 /usr/local/bin/shred_usb_device.sh

set -euo pipefail
IFS=$'\n\t'

trap 'cat /etc/issue > /dev/console 2>&1 ; exit' 1 2 3 15

echo > /dev/console 2>&1
echo "starting shred of $1" > /dev/console 2>&1

echo > /dev/console 2>&1
/usr/bin/shred -fvz -n1 $1 > /dev/console 2>&1
echo > /dev/console 2>&1

echo "finished shred of $1" > /dev/console 2>&1
echo > /dev/console 2>&1

cat /etc/issue > /dev/console 2>&1