You're welcome! And in that case, I'd change those checks to the following: 

die "Not a valid file, Check output!" if $dumpbuf =~ m/[^0-9A-F]/; #ma
+tch one
die "File contains only zeros, Check output!" if $dumpbuf !~ m/[1-9A-F
+]/; #match two

[download]

(In particular, note that the second regex should include A-F, since otherwise some valid files will be rejected.)

In reply to Re^3: Regex String by AppleFritter
in thread Regex String by egal

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