If you are performing this tutorial at a Computational Biophysics Workshop offered by the Theoretical and Computational Biophysics Group, a copy of the files needed for this tutorial have been set up for you. They can be found in your home directory, under the path /Workshop/sbcg-tutorial/files/.
cd <path to the directory sbcg-tutorial/files/>
You can list the content of this directory by using the command ls.
If you downloaded the tutorial from the web
you will also need to download the appropriate files, unzip them, and place them in a directory of your choosing. You should then navigate to that directory in a similar manner as described directly above. The files for this tutorial are available at
http://www.ks.uiuc.edu/Training/Tutorials/
In the figure below, you can see the structure of the directory containing files for each of the tutorial exercises.