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"What shall we do?" said Twoflower. "Panic?" said Rincewind hopefully. He always held that panic was the best means of survival; back in the olden days, his theory went, people faced with hungry sabretoothed tigers could be divided very simply into those who panicked and those who stood there saying "What a magnificent brute!" and "Here, pussy." -Terry Pratchett, "The Light Fantastic"
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         // \/   \/ \\
        ((    O O    ))
         \\ /     \ //
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           |   o   |
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           |m|   |m|
 cat /etc/group | cut -d: -f1