personal bash script to move pdfs of a certain page count to a folder

move.sh

ls | grep -i .pdf | while read -r line ; do
    egg=$(pdfinfo "$line" | grep Pages | sed 's/[^0-9]*//')
    if [ $egg -gt  20 ]; then
      echo "Processing $line with $egg"   
      mv "$line" BOOKS
    fi
    done