Oracle: Start up oracle on Linux

oracle@expc2042:/opt/oracle/product/11.2.0/dbhome_1/bin> sqlplus / as sysdba


oracle@expc2042:/opt/oracle/product/11.2.0/dbhome_1/bin> emctl start dbconsole

oracle@expc2042:/opt/oracle/product/11.2.0/dbhome_1/bin> lsnrctl start LISTENER


oracle@expc2042:/opt/oracle/product/11.2.0/dbhome_1/bin> lsnrctl start LISTENER

LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 20-FEB-2013 11:06:47

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Starting /opt/oracle/product/11.2.0/dbhome_1/bin/tnslsnr: please wait...

TNSLSNR for Linux: Version 11.2.0.1.0 - Production
System parameter file is /opt/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
Log messages written to /opt/oracle/diag/tnslsnr/expc2042/listener/alert/log.xml
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=expc2042)(PORT=1521)))

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 11.2.0.1.0 - Production
Start Date                20-FEB-2013 11:06:49
Uptime                    0 days 0 hr. 0 min. 0 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /opt/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
Listener Log File         /opt/oracle/diag/tnslsnr/expc2042/listener/alert/log.xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=expc2042)(PORT=1521)))
The listener supports no services
The command completed successfully