java - Are there more env variables appart from the ones I see when I type ENV? -

i trying make r extension rapidminer work, , have follow steps include setting enviromental variables make sure rapidminer able see java , r are.

both environmental variables set r_home , java_home

i have set both variables , able see them when type env on terminal, when run rapidminer r not working. on logs see following:

[fatal error] :1:1: premature end of file. r_home not set. please set required environment variables before running program. unable start r jul 15, 2013 3:05:25 pm com.rapidminer.tools.r.jrirsession initializeengine severe: not initialize r via jri. reason: unable initialize r jul 15, 2013 3:05:25 pm com.rapidminer.gui.r.rconsole <init> severe: not acquire connection r: not initiate session native r. try using server. reason: not initialize r via jri. reason: unable initialize r 

so wondering why rapidminer not able read environmental variables in same way do.

is possible rm reading variables different location? there anyway can make sure?

any tip appreciated. thanks!