A better option may be an MD5 comparison of the contents of the files. If you're going to go through the trouble of creating a rollback mechanism for copying, you should at least verify that the files are exact matches (well, MD5 has a slight chance of creating the same hash for slightly differing inputs (i.e. the hard drive misreads and puts "I am a lonely man" instead of "I like to dress in women's clothing" and you get the same MD5 for both lines...which you don't, I checked), but the chances are somewhere in the realm of winning the lottery every drawing during a year and then dying from the combination of a shark attack and simultaneously getting struck by lightning, all while in Kansas...driving on the highway...in the middle of winter.... Actually, on second thought your chances may be worse than that...).
antirice
The first rule of Perl club is - use Perl
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