get-random.sh

#!/bin/bash
#

TMP_FILE="/tmp/random_data"

echo "Generating random data..." >&2
dd if=/dev/urandom bs=1 count=256 > /tmp/random_data
RANDOM_HASH=$(sha512sum -b /tmp/random_data | awk '{ print $1 }')
rm $TMP_FILE

echo "$RANDOM_HASH"