Red Hat ENTERPRISE LINUX 5.1 - LINUX ORACLE Tuning Manual page 107

export ORACLE_HOME=$ORACLE_BASE/product/10.1.0/db_1
export PATH=$PATH:$ORACLE_HOME/bin
export LD_LIBRARY_PATH=$ORACLE_HOME/lib
For 10g R2 (10.2.0.1.0) you may want to add the following lines to the ~oracle/.bash_profile
file:
export ORACLE_HOME=$ORACLE_BASE/oracle/product/10.2.0/db_1
export PATH=$PATH:$ORACLE_HOME/bin
export LD_LIBRARY_PATH=$ORACLE_HOME/lib
After that run the following command to set all environment variables in ~oracle/.bash_profile:
$ . ~oracle/.bash_profile
This command will add the environment variables to the ~oracle/.profile and source in the file
for the current shell by executing ". ~oracle/.bash_profile".
Note
Do not add a trailing "/" on the ORACLE_HOME environment variable. Otherwise you will
get the error "ORACLE not available" when you try to connect to sys, see
Oracle 10g and Linux Installation Errors and
Updating after the Oracle Universal Installer
Troubleshooting.
Chapter 29,
101