#!/bin/bash

export IFS="
"
export prefix="$(echo $PWD | rev | cut -f 1 -d '/' | rev)"
firstext="$(ls | head -n 1 | rev | cut -f 1 -d \. | rev)"
export count=1;
for i in $(ls -tr *."$firstext" | grep -v "$prefix"); do
    mv "$i" "$prefix $count.$firstext"
    export count=$(($count+1))
done