forts/big_fort.txt: forts/short.txt forts/long.txt
	cat forts/short.txt forts/long.txt > forts/big_fort.txt

forts/:
	mkdir forts

forts/short.txt: forts/
	fortune -s > forts/short.txt

forts/long.txt: forts/
	fortune -l > forts/long.txt