Let's say you write a script for a very specific task in your work, but that could be useful for someone else in your line of work, other bioinformaticians or biologist, and because of that you want to publish it in some journal or specialized scientific communication.
Is that even possible, which publishers or journals would you use to do that?
Or because it is just a small task you wouldn't even bother in trying to report it.
Is it free?
No: http://f1000research.com/for-authors/article-processing-charges