Scripts: Add erase-disk.sh

artix-install.sh

@@ -24,6 +24,7 @@ sleep 0.4
 echo "Making scripts executable..."
 
 chmod +x scripts/.local/bin/clear-clipboard.sh
+chmod +x scripts/.local/bin/erase-disk.sh
 chmod +x scripts/.local/bin/update.sh
 chmod +x sway/.config/sway/autostart.sh
 chmod +x waybar/.config/waybar/ivpn-reconnect.sh

fedora-install.sh

@@ -24,6 +24,7 @@ sleep 0.4
 echo "Making scripts executable..."
 
 chmod +x scripts/.local/bin/clear-clipboard.sh
+chmod +x scripts/.local/bin/erase-disk.sh
 chmod +x scripts/.local/bin/update.sh
 
 sleep 0.5

scripts/.local/bin/erase-disk.sh

@@ -0,0 +1,19 @@
+#!/bin/dash
+# USAGE: erase-disk.sh <passes> <device>
+# Must be run as root
+
+echo "# Securely erasing the disk device $2"
+
+i=1
+
+while [ $i -le $1 ]; do
+    [ $i -eq 1 ] && if="/dev/urandom" || if="/dev/zero"
+
+    echo "\n- Begin pass $i with $if"
+    dd if="$if" of="$2" status="progress"
+    
+    echo "- Syncing I/O"
+    sync
+    
+    i=$(( i + 1 ))
+done