Deleting left over raw/nef image files

My camera is set to save both a jpg and a raw nef files for every photo i take.
When i process my photos i do it on the jpg files. A lot of them gets deleted as they are not worth to keep.

When i am done there is a lot of nef files with their corresponding jpg deleted. To simply just delete all the nef files that have no corresponding jpg file i run this bash script:

for file in *.nef; do
 if [ ! -e $name.jpg ]; then
  rm $name.nef 
 fi
done

Or enhanced version to show the list of orphaned nef files and ask for confirmation:

renamexm -l *
len=${#files[*]}
i=0
while [ $i -lt $len ]; do
 name=${files[$i]%\.*}
 if [ ! -e "$name.jpg" ]; then
  echo "$name.nef"
 fi
 let i++
done
read -n1 -p "Want to delete those? (y/n) "
if [[ $REPLY =~ ^[Yy]$ ]] ; then
 echo
 echo deleting...
 i=0
 while [ $i -lt $len ]; do
  name=${files[$i]%\.*}
  if [ ! -e "$name.jpg" ]; then
   rm "$name.nef"
  fi
  let i++
 done
else
 echo
 echo none deleted
fi