#!/bin/sh

md5sum * > /tmp/md5.txt
sort /tmp/md5.txt > /tmp/mdd5.txt
rm -f /tmp/md5.txt

pmd=
pfn=
cat /tmp/mdd5.txt | while read md fn; do
        if [ "$md" = "" ]; then
                break;
        fi
        if [ "$pmd" != "" ]; then
                if [ "$pmd" = "$md" ]; then
                        rm -f "$fn"
                fi
        fi
        pmd=$md
        pfn=$fn
done