命令：

lsnrctl start

參考如下：

SQL> startup
ORA-01031: insufficient privileges


SQL> startup
ORA-32004: obsolete or deprecated parameter(s) specified for RDBMS instance
ORA-01081: cannot start already-running ORACLE - shut it down first


[[email protected] ~]$ lsnrctl start

LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 19-OCT-2012 10:56:01

Copyright (c) 1991, 2009, Oracle.  All rights reserved.

Starting /home/oracle/app/product/11.2.0/db_1/bin/tnslsnr: please wait...

TNSLSNR for Linux: Version 11.2.0.1.0 - Production
System parameter file is /home/oracle/app/product/11.2.0/db_1/network/admin/listener.ora
Log messages written to /home/oracle/app/diag/tnslsnr/localhost/listener/alert/log.xml
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=localhost.localdomain)(PORT=1521)))
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=localhost.localdomain)(PORT=1521)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 11.2.0.1.0 - Production
Start Date                19-OCT-2012 10:56:04
Uptime                    0 days 0 hr. 0 min. 0 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /home/oracle/app/product/11.2.0/db_1/network/admin/listener.ora
Listener Log File         /home/oracle/app/diag/tnslsnr/localhost/listener/alert/log.xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=localhost.localdomain)(PORT=1521)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
The listener supports no services
The command completed successfully


[
 
[email protected] ~]$ lsnrctl start

LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 19-OCT-2012 10:59:33

Copyright (c) 1991, 2009, Oracle.  All rights reserved.

TNS-01106: Listener using listener name LISTENER has already been started