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sub atoi { my $t; ... } } $number = atoi("123");
$string = sprintf("%f", 123.45);
if ($string == "$string") { # It is a number }
if ($var =~ /(?=.)M{0,3}(C[MD]|D?C{0,3})(X[CL]|L?X{0,3})(I[XV]|V?I{0 +,3})/) { print "$var contains a number.\b"; }
A photo of people (family, friends, myself, ...) A photo of my pet(s) A photo of something man-made (cars, machines, etc.) A photo of nature, space, or something else not man-made An abstract pattern Artwork, digital or photographed A solid color A digital animation Whatever my desktop environment has set for me by default I haven't seen my background in weeks, too many windows covering it!
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