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Comment by sebbsnoprocrast | Hacker News Reader

I, too, ended up copying the file to my machine.

I also ended up with this: https://gist.github.com/daveloyall/63485c5a08882432b138c0917...

I didn't think we were allowed to even potentially change the order, so I used

  awk '{if (!c[$0]) { print }; c[$0] = 1 }'

Oh ya, I shouldn't have said answer, because uniq is not a way to the answer, just something I naturally reached for while trying to figure out an answer.

    awk '!a[$0]++' faces.txt

is a touch shorter ^^

That's the same approach used by the challenge's original creator (in the GitHub link above). It's a clever solution!

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