I'm going to include a link to a good resource for job seeking skills at the end of this post. But first:
The short answer: based on your example, I would advise to include Bash scripting.
Use the body of your resume to explain how you have used Bash -- list the basic scripting things that you have done, and be honest.
Reasoning: the person reviewing your resume knows that you are fresh out of school. You are not claiming to be a bash guru.
Long answer:
One of the most important components of getting into a job that you want is to your resume in front of the hiring manager (or better yet, met him or her). That may seem obvious, but nearly all companies use their Human Resources department as a filter for weeding out candidates that they don't want. The problem is that the HR person is not an IT or development expert. So if possible, you want to bypass the HR department (if you know someone at a firm, ask them to present your resume, or better yet, to introduce you to the hiring manager).
The HR screening process is an elimination process -- that is, their function is filtering, so they are looking for things that will disqualify you. You have to assume that the HR person has only average technical knowledge. They are looking for things like "is java in the resume?" ".net?", ok.
The HR screener is just looking for keywords. So, when you list the technologies that you konw, make sure to include anything that you feel reasonably proficient in.
In your body, you can discuss what you've done with the technology (that part is for the hiring manager to read).
But really, the most important thing that you can do is bypass HR, get yourself (or at least your resume) in front of the hiring manager.
Here's a great blog:
http://www.asktheheadhunter.com/
Make sure to read the basics:
http://www.asktheheadhunter.com/basics.htm