in reply to how is this uninitialized?

Another way to do it, other than the fine way shown by dragonchild:

my $hodown = @downhosts;
my $houp   = @uphosts;

print "There are $hodown hosts down\n";
print "There are $houp hosts alive\n\n";

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Sorry for the variable names, I couldn't resist. This has the benefit of allowing simpler interpolation in a string, and doesn't require the explicit use of scalar. It has the detriment of creating two superfluous variables. I am not necessarily advocating any particular solution, just giving another option. :-)

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Re^2: how is this uninitialized?
by redlemon (Hermit) on Dec 29, 2004 at 14:10 UTC

    Or, while we're giving alternatives: 

    print <<"REPORT"

    There are @{[ scalar @downhosts ]} hosts down
    There are @{[ scalar @uphosts   ]} hosts up

    The following hosts are alive:
        @{[ join "\n\t" => @uphosts ]}

    The following hosts are down:
        @{[ join "\n\t" => @downhosts ]}

REPORT

    [download]

    I like inline expansions, apparently perl6 is supposedly going to make that easier.

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