Graphically un-hotplug drives

hotplug.sh

#!/usr/bin/env bash
LINE=""
DRIVES=$(ls /sys/block)
for DRIVE in $DRIVES; do
  if ls /dev/$DRIVE 2>/dev/null >/dev/null && ls /sys/block/$DRIVE/device/delete 2>/dev/null >/dev/null; then
    SIZE=$(blockdev --getsize64 /dev/$DRIVE | awk '{ split( "B KB MB GB TB" , v ); s=1; while( $1>1024 ){ $1/=1024; s++ } print int($1) v[s] }')
    LINE="$LINE p $DRIVE $SIZE"
  fi
done
BLOCK=$(zenity --list --title "Choose drive to remove" --radiolist --column="Remove" --column="Device" --column="Size" $LINE)
if [ $? -eq 0 -a $(echo $BLOCK | wc -c) -gt 1 ]; then
  echo 1 > /sys/block/$BLOCK/device/delete
fi