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  1. or download this
    #!/usr/bin/perl -w
use strict;
...
    # some other thing...
    return "...other...";
}
  2. or download this
    [10:41:17] ~
$ perl -e '$a=5; print ref($a)'

[10:41:29] ~
$
  3. or download this
    [10:41:29] ~
$ perl -e '$a=5; print ref(\$a)'
...
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[10:43:26] ~
$