Survex is a Free and Open Source software package to assist surveying 
and mapping cave systems.

By default this slackbuild installs a sample dataset into the 
installation directory tree. If you do not need this passe to the 
script the environment variable SAMPLE=no as following:

SAMPLE=no ./survex.SlackBuild

Note: the Graphical Interface User is launched by the command aven or 
the Desktop entry "Aven Cave Surveying Tool".