oracle 12c Installation and Database creation

I have installed Oracle 12c (12.1.0) in Oracle Linux 6. Below are the steps:

Set ORACLE_HOME to the location where the files will be installed and set the port no for the EM:

export $ORACLE_HOME=/u01/app/oracle/product/12.1.0/db_1

export $DBEXPRESS_HTTPS_PORT=5500