Mine

#!/bin/sh
scancd(){
        dialog \
        --backtitle "${TITLE}" \
        --title "Localizando" \
        --infobox "Buscando por dispositivo \
 CD/DVD IDE que contenha o disco de instalacao do UnicoNET..." 4 56
 sleep 3
 for device in \
  /dev/hdd /dev/hdc /dev/hdb /dev/hda \
  /dev/hde /dev/hdf /dev/hdg /dev/hdh \
  /dev/hdi /dev/hdj /dev/hdk /dev/hdl \
  /dev/hdm /dev/hdn /dev/hdo /dev/hdp \
  ; do
echo $device
 done
}
scancd