#!/bin/bash sizes="512 4K 1M 10000000 272629760" for size in $sizes; do echo $size dd if=/dev/random of=input.$size bs=$size count=1 fsverity digest input.$size \ --hash-alg=sha256 \ --salt=010203040506 \ --block-size=4096 \ --out-merkle-tree input.$size.hash \ --out-descriptor input.$size.descriptor done