Problem with environment variables

[Miguel Albuquerque]

Hello!

I'm having some trouble installing Kaffe on Unix BSDi. I need to know the exact settings
of the environment variables CLASSPATH, KAFFEHOME, PATH and LD_LIBRARY_PATH. The
contents of the ENVIRONMENT file generated during installation is as follows:
   CLASSPATH=.:/usr/home/javauniv/usr/local/share/kaffe/classes.zip
   KAFFEHOME=/usr/home/javauniv/usr/local/share/kaffe
   PATH=/usr/home/javauniv/usr/local/bin:$PATH
   export CLASSPATH KAFFEHOME LD_LIBRARY_PATH PATH

What is supposed to do? I would like to know a couple of things:
1. What shell do I need to be running (e.g., sh, csh, tcsh, etc)?
2. How do I set the environment variables (set or setenv)? What is the syntax that must
be used?
3. What does the line 'export ...' mean?
4. What should be the setting for LD_LIBRARY_PATH?

Thanks a lot.
-- 
Miguel Albuquerque (mailto:Miguel.Albuquerque at rnl.ist.utl.pt)
JavaUniverse Editor - visit http://www.javauniverse.com
Instituto Superior Técnico (http://www.ist.utl.pt)
S.João do Estoril, Lisboa, Portugal