1. $lsnrctlstatus
3. LSNRCTLforLinux:Version11.1.0.6.0-Productionon04-APR-200916:27:39
4. Copyright(c)1991,2007,Oracle.Allrightsreserved.
5. Connectingto(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.2)(PORT=1521)))
6. TNS-12541:TNS:nolistener
7. TNS-12560:TNS:protocoladaptererror
8. TNS-00511:Nolistener
9. LinuxError:111:Connectionrefused
10. Connectingto(DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC)))
11. TNS-12541:TNS:nolistener
12. TNS-12560:TNS:protocoladaptererror
13. TNS-00511:Nolistener
14. LinuxError:2:Nosuchfileordirectory

如果oracle监听器正在运行，你将得到如下信息

Linux:Version11.1.0.6.0-Productionon04-APR-200916:27:02
1. STATUSoftheLISTENER
2. ————————
3. AliasLISTENER
4. VersionTNSLSNRLinux:Version11.1.0.6.0-Production
5. StartDate29-APR-200918:43:13
6. Uptime6days21hr.43min.49sec
7. TraceLeveloff
8. SecurityON:LocalOSAuthentication
9. SNMPOFF
10. ListenerParameterFile/u01/app/oracle/product/11.1.0/network/admin/listener.ora
11. ListenerLogFile/u01/app/oracle/diag/tnslsnr/devdb/listener/alert/log.xml
12. ListeningEndpointsSummary…
13. (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.2)(PORT=1521)))
14. (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC)))
15. ServicesSummary…
16. Service“devdb”has1instance(s).
17. Instance“devdb”,statusUNKNOWN,has1handler(s)forthisservice…
18. Service“devdb.thegeekstuff.com”has1instance(s).
19. Service“devdbXDB.thegeekstuff.com”has1instance(s).
20. Service“devdb_XPT.thegeekstuff.com”has1instance(s).
21. Thecommandcompletedsuccessfully

2.启动oracle监听器

如果oracle监听器没用运行，你可以用lsnrctl start命令启动oracle监听器，该命令将启动所有的监听器，如果你只想启动特定的监听器，可以再start后面指定监听器的名字，例如：lsnrctl start [listener-name]。

$lsnrctlstart
1. Linux:Version11.1.0.6.0-Productionon04-APR-200916:27:42
2. Starting/u01/app/oracle/product/11.1.0/bin/tnslsnr:pleasewait…
3. TNSLSNRSystemparameterfileis/u01/app/oracle/product/11.1.0/network/admin/listener.ora
4. Logmessageswrittento/u01/app/oracle/diag/tnslsnr/devdb/listener/alert/log.xml
5. Listeningon:(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.2)(PORT=1521)))
6. Listeningon:(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC)))
7. StartDate04-APR-200916:27:42
8. Uptime0days0hr.0min.0sec
9. Thecommandcompletedsuccessfully

3.关闭oracle监听器

如果oracle监听器正在运行，可以使用lsnrctl stop命令关闭oracle监听器，该命令将关闭所有的监听器，如果你只想关闭特定的监听器，可以再stop后面指定监听器的名字，例如：lsnrctl stop [listener-name]

$lsnrctlstop
1. Linux:Version11.1.0.6.0-Productionon04-APR-200916:27:37
2. Thecommandcompletedsuccessfully

4.重启oracle监听器

用lsnrctl reload重启监听器，此命令可以代替lsnrctl stop和lsnrctl start。重启将会在不需要关闭和启动监听器的情况下读取listener.ora的配置。

$lsnrctlreload
1. Linux:Version11.1.0.6.0-Productionon04-APR-200917:03:31
2. Thecommandcompletedsuccessfully

Oracle监听器帮助

1.查看所有的监听器命令

lsnrctl hep命令可以显示所有可用的监听器命令。在oracle11g中其输出如下：

start - Start the Oracle listener stop - Stop the Oracle listener status - Display the current status of the Oracle listener services - Retrieve the listener services information version - Display the oracle listener version information reload - This will reload the oracle listener SID and parameter files. This is equivalent to lsnrctl stop and lsnrctl start. save_config - This will save the current settings to the listener.ora file and also take a backup of the listener.ora file before overwriting it. If there are no changes,it will display the message “No changes to save for LISTENER” trace - Enable the tracing at the listener level. The available options are ‘trace OFF’,‘trace USER’,‘trace ADMIN’ or ‘trace SUPPORT’ spawn - Spawns a new with the program with the spawn_alias mentioned in the listener.ora file change_password - Set the new password to the oracle listener (or) change the existing listener password. show - Display log files and other relevant listener information.

$lsnrctlhelp
1. Linux:Version11.1.0.6.0-Productionon04-APR-200916:12:09
2. Thefollowingoperationsareavailable
3. Anasterisk(*)denotesamodifierorextendedcommand:
5. startstopstatus
6. servicesversionreload
7. save_configtracespawn
8. change_passwordquitexit
9. set*show*

2.得到指定监听器命令的详细帮助信息