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my $string = "Hello World";  
if ($string =~ /Hello/) { 
    print "Basic String contains: Hello\n"; 
}

my $string = "\"Hello\" World";

...
my $string = q{"Hello" World};

my $string = qq{"Hello" World};

if ($string =~ /"Hello"/) { 
    print "Basic String contains: Hello\n"; 
}