This is a tangent, but you should be careful with code like:

die "\nYou haven't entered enough parameters !!\n\n" unless $ARGV[1];
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because if the second argument passed to the script evaluates to false (0,undef,''), the script will die even if you didn't wish it to do so. a way to prevent this:

die "\nYou haven't entered enough parameters !!\n\n" unless defined $A
+RGV[1];
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