Find the smallest integer where the SHA256 hash of 'catch-me-if-you-can'+integer will start with 9 zeroes.

sha256.sh

#!/bin/bash

counter=1
key=catch-me-if-you-can
value=0

while [[ $value != 000000000* ]]
do
	value=$(echo -n $key+$counter | shasum -a 256)
	echo $counter
	echo $value
	((counter++))
done