Setting Oracle Environments

Since the Oracle Universal Installer (OUI) "runInstaller" is run from the oracle account, some environment variables must be configured for this account before OUI is started.

Execute the following commands for the Bash shell which is the default shell on Red Hat Linux (to verify your shell run: echo $SHELL):

su - oracle
export ORACLE_BASE=/u01/app/oracle
export ORACLE_SID=orcl

NOTE: If ORACLE_BASE is used, then Oracle recommends that you don't set the ORACLE_HOME environment variable but that you choose the default path suggested by the OUI. You can set and use ORACLE_HOME after you finished running OUI.

Also, the environment variables ORACLE_HOME and TNS_ADMIN should not be set. If you've already set these environment variables, you can unset them by running the following commands:

unset ORACLE_HOME
unset TNS_ADMIN

To have these environment variables set automatically each time you login as oracle, you can add these environment variables to the ~oracle/.bash_profile file which is the user startup file for the Bash shell on Red Hat Linux. To do this you could simply copy/paste the following commands to make these settings permanent for your oracle's Bash shell:

su - oracle
cat >> ~oracle/.bash_profile << EOF
export ORACLE_BASE=/u01/app/oracle
export ORACLE_SID=orcl

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