Hunt Duplicated file type

#!/bin/bash
#Find , compare and move duplicate files from different directory
# /!\` files' name need to be in block , like : "about_file-Title.pdf" , not "about file title.pdf"

clear

GREEN='\033[0;32m'
RED='\033[0;31m'
NC='\033[0m' # No Color

#Change path (absolute) ,extension and destination path
pathA='./A/'
pathB='./B/'
fileType='pdf'
destinationPath='./'

#list files
ls -l $pathA | grep $fileType | awk '{ print $5 " " $9 }' > bufferA.ghost 
ls -l $pathB | grep $fileType | awk '{ print $5 " " $9 }' > bufferB.ghost 

totalLines=$(wc -l bufferB.ghost | cut -d ' ' -f1)

if ((totalLines != 0))
then

	i=1
	j=0

	while [ $i != $[totalLines+1] ]
	do
		pdfA=$(sed -n "$i p" bufferA.ghost)

		if grep -qe "$pdfA" bufferB.ghost
		then
			pdfA=$(sed -n "$i p" bufferA.ghost | awk '{ print $2 }')
			echo -e "${RED}Duplicate $fileType${NC} find : $pdfA"
			
			echo "move to $destinationPath"
			mv $pathB$pdfA $destinationPath
			
			#echo "deleted..."
			#rm $pathB$pdfA			

			j=$[$j+1]
		fi

		i=$[$i+1]
	done

	if ((j > 0))
	then
		echo "__________________________________"
		echo -e "${RED}$j ${NC}$fileType duplicate"
	fi

else

	echo " "
	echo " "
	echo -e "${GREEN} 0 ${NC}$fileType duplicate"
	echo " "
	echo " "

fi

rm buffer*