make DESTDIR=/ PREFIX=/usr install

$ cat fib n="$1" if [ "$n" -eq 0 ] ; then echo 0 elif [ "$n" -eq 1 ] ; then echo 1 else	a="$(MEMOIZE_CACHE="/tmp/${USER}-memoize" memoize 9999 sh fib $((n-1)))"	b="$(MEMOIZE_CACHE="/tmp/${USER}-memoize" memoize 9999 sh fib $((n-2)))" echo "$a + $b" | bc fi $ sh fib 100 354224848179261915075 $ sh fib 200 280571172992510140037611932413038677189525