This page describes how to set the MARIN_LICENSE_PATHS environment variable in Scientific Linux.
In the Terminal type "gedit .bashrc". Do not forget the dot in front of bashrc. Otherwise an empty text file will be opened.
You can use any Linux text editor that you're familiar with and that is available on your system.
At the end of the text file add:
# MARIN License Path environment variable MARIN_LICENSE_PATHS=$HOME/Licenses export MARIN_LICENSE_PATHS
The result should look like this: