How to correctly set the ORACLE_HOME variable on Ubuntu 9.x?

Question

I have the same problem as listed here: How to recover or change Oracle sysdba password although I did not lose the password, I entered it twice in the configure script orig

Answer 1

This is the right way to clear this error.

export ORACLE_HOME=/u01/app/oracle/product/10.2.0/db_1 sqlplus / as sysdba