Database start: [zhwei @ nw bin] $ sqlplus "/ as sysdba" SQL> Startup
Database Off: [zhwei @ nw bin] $ sqlplus "/ as sysdba" SQL> Shutdown
Start Oracle 9i Listeners: [zhwei @ nw bin] $ lsnrctllsnrctl> Start
Close Oracle 9i listener: zhwei @ nw bin] $ lsnrctllsnrctl> stop
