tab@foobar:~dev$ perl -w 736240.pl 
3343df3ffdkj34j3k34j3k -> testfile1
3343df3ffdkj34j3k34j3k -> testfile4
389k34d46hj3k493843kjj -> testfile2
lj3l4o342u423see3u43u4 -> testfile3