me@ubuntu01$ rm file me@ubuntu01$ me@ubuntu01$ me@ubuntu01$ ./SerialHashTest.perl Hash file 'file' doesn't exist, creating... Use of uninitialized value in printf at ./SerHash2.perl line 33. Hash has key2! (Value is: '') me@ubuntu01$ me@ubuntu01$ me@ubuntu01$ ./SerialHashTest.perl Hash has key2! (Value is: 'data2') me@ubuntu01$ me@ubuntu01$