#!/usr/bin/sh

if [[ $1 ]]; then
    char_num=$1;
else
    char_num=64;
fi

cat /dev/urandom | tr -dc 'a-zA-Z0-9!@#$%^&*' | fold -w $char_num | head -n 1 | systemd-creds encrypt -p - /tmp/salt

cat /tmp/salt
rm /tmp/salt