If the input file contains only a number -9999998, your code will report that, but if that number is -9999999 or below, it reports "No line with number found."

Personally, I use undef instead of a magic number; my usual pattern is the following (expanded slightly for clarity):

my $max;
for my $n ( qw/ 6 3 1 4 7 2 10 5 8 9 / ) {
    if ( !defined $max || $n > $max ) {
        $max = $n;
    }
}
print "Max: ", $max//"none", "\n";

[download]

Update: The suggestion to use undef as a special value actually applies to several other posts in this thread as well, at least here and here. OTOH, your code is the only one that uses a well-established module to find the numbers, there are several posts that simply use the original \d+, which of course will cause the code to think that -99 is larger than 98.

In reply to Re^2: Print the line with the largest number from standard input (updated) by haukex
in thread Print the line with the largest number from standard input by SSSufe

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