One problem is that the directories in your LD_LIBRARY_PATH should be separated with colons (:) instead of commas. Eg,

LD_LIBRARY_PATH=$ORACLE_HOME/lib:/usr/ucblib:/usr/dt/lib
instead of
LD_LIBRARY_PATH=$ORACLE_HOME/lib,/usr/ucblib,/usr/dt/lib


If you're getting a library file not found when you try to execute the programs, that's most likely the source of the problem.

If that doesn't fix it, what error are you getting when you try to execute a program?