You change it like this if you want to match everything else use || to satisy atleast one.

You see perlop.

$a = "a";
$b = "b";
$c = "c";
$d = "d";
$e = "e";

if (($a eq "a")&& ($b eq "b")&& ($c="c")&& ($d="d")&& ($e="e")) {
    print "success";
}
else {
    print "failure";
}
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