$ cat /etc/profile.d/oracle.sh
# Oracle Environment
export ORACLE_BASE=/u00/app/oracle
export ORACLE_HOME=$ORACLE_BASE/product/10.2.0/db_1
export ORACLE_SID=xcede
export ORACLE_TERM=xterm
export NLS_LANG=AMERICAN
export ORA_NLS10=$ORACLE_HOME/nls/data
export LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib:/usr/local/lib
export PATH=$PATH:$ORACLE_HOME/bin