If you know the separator (white space) you don't have to use a regexp. A simple split will do. 
my $line = qq|30 44 02 01 01 04 06 70 75 62 6C 69 63 A7 37 02 0D.....p
+ublic.7|;
my $fourteenthnumber = (split (/ /, $line))[13];
print $fourteenthnumber;

[download]
updated with tachyon's syntactic sugar from /\s/ to / /.

pelagic

In reply to Re: reg ex help by pelagic
in thread reg ex help by markd

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