diffDel.sh

#!/bin/bash
trap 'rm -f "$TMPFILE"' EXIT

TARGETDIR="/home/USER/Downloads/"
TMPFILE=$(mktemp 2>/dev/null||mktemp -t tmp)

cd ${TARGETDIR}
ls . | grep -e "([1-9])" > ${TMPFILE}

while read difffile
do
    echo "diff file  : " ${difffile}
    origifile=`echo ${difffile} | sed -e "s/ ([1-9])//"`
    echo "origi file : " ${origifile}
    diff -qsr "${origifile}" "${difffile}"
    if [ $? -eq 0 ]; then
	echo "${origifile}  == ${difffile}"
	echo "rm -r \"${difffile}\""
	rm -r "${difffile}"
    fi

done <${TMPFILE}

cd -