If you know that dallas.txt is not going to be terribly large, then you can 'slurp' the entire file into a scalar (instead of an array) and use a regex. The trick is to use the 's' modifier to allow . to match newlines and the 'm' modifier to allow ^ to match the start of any line. See perlre for more. 
my $slurped = do {local $/; <SERVER>};

# EEK! i see my mistake now! this line
#my ($temp) = $slurped =~ /($arc.*)\n\n/sm;

# should have been
my ($temp) = $slurped =~ /^($arc.*)\n\n/sm;


print OUTPUT $temp;

[download]
P.S. Use these three lines instead of declaring the array @lines and the entire foreach loop if you wish to test this suggestion. It doesn't solve your problem about understanding conditional looping, but it does provide another way to solve the problem at hand.

jeffa

L-LL-L--L-LL-L--L-LL-L--
-R--R-RR-R--R-RR-R--R-RR
B--B--B--B--B--B--B--B--
H---H---H---H---H---H---
(the triplet paradiddle with high-hat)

In reply to (jeffa) Re: Searching for variable then blank lines by jeffa
in thread Searching for variable then blank lines by rscott212

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