Setting Oracle Environments - Red Hat ENTERPRISE LINUX 5.1 - LINUX ORACLE Tuning Manual

Chapter 25.

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 which is the default shell on Red Hat Enterprise 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 do not 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.
The environment variables ORACLE_HOME and TNS_ADMIN should not be set. If you 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 log on as oracle, you can
add these environment variables to the ~oracle/.bash_profile file which is the user start up file
for the Bash on Red Hat Enterprise Linux. To do this you could simply copy and paste the following
commands to make these settings permanent for your oracle accounts Bash shell:
su - oracle
cat >> ~oracle/.bash_profile << EOF
export ORACLE_BASE=/u01/app/oracle
export ORACLE_SID=orcl
EOF
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