大纲：

LSNRCTL> help
The following operations are available
An asterisk (*) denotes a modifier or extended command:

start               stop                status              
services            version             reload              
save_config         trace               spawn               
change_password     quit                exit                
set*                show*               

[oracle@Think ~]$ lsnrctl status

LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 25-JAN-2013 12:45:24

Copyright (c) 1991, 2005, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.112)(PORT=1521)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 10.2.0.1.0 - Production
Start Date                25-JAN-2013 12:13:27
Uptime                    0 days 0 hr. 31 min. 56 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /u01/app/oracle/product/10.2.0/db_1/network/admin/listener.ora
Listener Log File         /u01/app/oracle/product/10.2.0/db_1/network/log/listener.log
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.112)(PORT=1521)))
Services Summary...
Service "orcl.oracle.com" has 1 instance(s).
  Instance "orcl", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully

LSNRCTL> services
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.112)(PORT=1521)))
Services Summary...
Service "orcl.oracle.com" has 1 instance(s).
  Instance "orcl", status UNKNOWN, has 1 handler(s) for this service...
    Handler(s):
      "DEDICATED" established:2 refused:0
         LOCAL SERVER
The command completed successfully