by Marin Sok.
It works now after added
ORACLE_BASE=/u01/app/oracle; export ORACLE_BASE
ORACLE_HOME=$ORACLE_BASE/product/11.2.0/client_1; export ORACLE_HOME
ORACLE_SID=moodle; export ORACLE_SID
export LD_LIBRARY_PATH=$ORACLE_HOME/lib
export TNS_ADMIN=$ORACLE_HOME/network/admin
PATH=$PATH:$HOME/bin:$ORACLE_HOME/bin
export PATH
to ~/.bashrc file.
