When writing your scripts, there are a few naming conventions to observe that are common to scripting and programming. These conventions are more of guidelines and best practices than hard rules, which means that you will hear opinions on both sides. As scripting is a form of art, you will see examples that rebut these suggestions, but following them will improve readability.
Note
Most of the suggestions here were borrowed from the style guide for Python, which can be found at http://legacy.python.org/dev/peps/pep-0008/, and follow-on style guides.
If you see specifics here that do not directly match this guide, keep in mind that all assessors develop habits and styles that differ. The trick is to incorporate as many of the best practices as possible while not impacting the speed and quality of development.