LD_LIBRARY_PATH different when logging in different ways - Why?

Question

I am running Oracle 10.2.0.3 on RedHat Linux 32-bit.
In .bashrc file for oracle, I have set the LD_LIBRARY_PATH to $ORACLE_HOME/lib:$ORACLE_HOME/jre/1.4.2/lib/ext (need ext directory it for something I'm doing)
I have a java function, getEnvVar that returns the value of environment variables.
When I run sqlplus on the server from the oracle account using a non-system database account (i.e. SCOTT/TIGER), the LD_LIBRARY_PATH is set as above. Just what I want.
When I login as another user on the server (non-oracle) and login to sqlplus using the same DB account as above, the LD_LIBRARY_PATH is BLANK
When I go to my PC and use sqlplus on it (again using same database user as in the above two scenarios), the LD_LIBRARY_PATH is set to $ORACLE_11g_HOME/jre/1.4.2/lib/ext - no reference to $ORACLE_HOME/lib and it's looking in $ORACLE_11g_HOME for the ext directory instead of $ORACLE_HOME.
($ORACLE_11g_HOME isn't a real variable anywhere, it's just referencing /software/oracle/ora11g which is an incomplete environment we aren't even using.)
I can't figure out where all the different values for LD_LIBRARY_PATH are coming from...I thought once it was set in the oracle account's .bashrc, it would use that for all logins to the database.
Can anyone help me figure out what's going on here?
Thanks,
Laurel

Answer 1

I understand this...See more details about the specifics of my scenario below.
USER ORACLE on SERVER
$env
USER=oracle
LD_LIBRARY_PATH=/software/oracle/ora10g/lib:/software/oracle/ora10g/jre/1.4.2/lib/ext
ORACLE_HOME=/software/oracle/ora10g
ORACLE_SID=gdwd
$sqlplus userid/password
SQL> select getenvvar('LD_LIBRARY_PATH') from dual;
GETENVVAR('LD_LIBRARY_PATH')
/software/oracle/ora10g/lib:/software/oracle/ora10g/jre/1.4.2/lib/ext
USER LMOOD on SERVER
$env
USER=lmood
LD_LIBRARY_PATH=/software/oracle/ora10g/lib:/software/oracle/ora10g/jre/1.4.2/lib/ext
ORACLE_HOME=/software/oracle/ora10g
ORACLE_SID=gdwd
$sqlplus userid/password
SQL> select getenvvar('LD_LIBRARY_PATH') from dual;
GETENVVAR('LD_LIBRARY_PATH')
SQL> select 'X'||NVL(getenvvar('LD_LIBRARY_PATH'),'VAR IS NULL')||'X' from dual;
'X'||NVL(GETENVVAR('LD_LIBRARY_PATH'),'VARISNULL')||'X'
XVAR IS NULLX
Also, this would only address the local differences right? Not the issue when running on my PC via sqlnet.
Ideas?
Thanks,
Laurel