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boone/advent_day_5.sh

Last active December 7, 2015 04:18
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advent_day_5.sh
#!/bin/bash
# http://adventofcode.com/day/5
# Part 1
grep ".*[aeiou].*[aeiou].*[aeiou].*" day5_input.txt | grep -E "([a-z])\1" | grep -v -E "(ab|cd|pq|xy)" | wc -l
# Part 2
grep -E "([a-z]).{1}\1" day5_input.txt | grep -E "([a-z]{2}).*\1" | wc -l
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