Here is the snippet of code that I am looking at: 
my ($sets) = IO::Select->select($socket_set, undef, undef, 0);
...
foreach (@$sets) {
      $buf = <$_>;
      if($buf) {
         if($buf =~ "^VIEWLOG") {
...

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What is @$ doing in front of sets? I keep thinking that it is some kind of hash, but it is probably wrong.

In reply to @$ variable type by Anonymous Monk

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