Hi,
This script is very useful in my work and I tend to deploy it on my personal environments.
But for someone who discover this tool on a server (for example) it could be nice to know what is the project URL, in case he wants to upgrade it or having more information (such as the man page).
I suggest you write a header with tour name/contact, project URL, a brief description of the usage, maybe the license as well. This project deserves it.