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#!/bin/bash
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if [[ $# = 1 ]]; then
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day=$1
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else
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day="$(date +%d | sed 's/^0//')"
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fi
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read -r answer < <(tail -n 1)
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curl -D - "https://adventofcode.com/2020/day/$day/answer" -H "Cookie: session=$(cat cookie)" --data-raw "level=1&answer=$answer" | grep '<article>'
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