What follows is a sample construct for asking again instead of using a default. 

my $file;
for (;;) {
   print "Which file do you want to open? ";
   $file = <STDIN>;
   chomp($file);
   last if length $file;
   print "Please supply a file name.\n";
}

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In reply to Re: Adding Default Values [for BEGINNERS] by ikegami
in thread Adding Default Values [for BEGINNERS] by brusimm

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