Although entirely unrelated to your posted problem, I'd like to point out
that you aren't actually checking the return value of your open call
like you may think you are. The '||' operator has higher precedence than
the comma so:
open SSG, "<ADRX.ssg" || die "can\'t open ADRX.ssg";
# is the equivalent of saying:
open(SSG, ("<ADRX.ssg" || die "can\'t open ADRX.ssg"));
Either use the lower precedence or operator, or use parentheses
appropriately:
open(SSG, "<ADRX.ssg") || die "can\'t open ADRX.ssg";
open SSG, "<ADRX.ssg" or die "can\'t open ADRX.ssg";
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