message: Added file header
diff: -#!/usr/bin/env bash
  +#!/bin/sh
  +# ===========================================================================
  +#
  +# Created: 2019-01-22 HLXEasy
  +#
  +# Helper script to create checksums for given file (1st parameter)
  +# and write them into given another file (2nd parameter)
  +#
  +# ===========================================================================
  +
  givenFileWithPath=$1
  checksumfile=/tmp/checksumfile
  if [[ -z "${givenFileWithPath}" ]] ; then
  