Shut down an Oracle database instance using SQL*Plus (Linux systems)

Procedure Log on to the operating system as oracle, or switch user to oracle by typing the following command, followed by the oracle password: Copy su - oracle Manually set the Oracle environment by typing one of the following commands: Copy export ORACLE_HOME=Oracle-home-path export ORACLE_SID=tc Start the Oracle SQLPlus utility: Copy $ORACLE_HOME/bin/sqlplus Log on to SQL. At the SQLPLUS prompt, type the following command: Copy connect / as sysdba The following system message is displayed: Copy Connected. At the SQLPLUS prompt, type the following command: Copy shutdown immediate The following system message is displayed: Copy Database closed. Database dismounted. ORACLE instance shut down. The Oracle database is shut down. Exit the SQLPlus utility by typing the following command at the SQLPLUS prompt: Copy exit