Oracle listener lsnrctl command

Here are lsnrctl command :

C:\>lsnrctl

LSNRCTL for 32-bit Windows: Version 10.2.0.1.0 - Production on 12-PEB-2008 18:56:26

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

Welcome to LSNRCTL, type "help" for information.

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

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

LSNRCTL>

The following commands are used to manage the listener:

• start – Starts the listener with the name specified, otherwise LISTENER will be used. For Windows systems, the listener can also be started from the Control Panel.
• stop – Stops the listener. For Windows systems, the listener can also be stopped from the Control Panel.
• status – Provides status information about the listener, including start date, uptime, and trace level.
• services – Displays each service available, along with the connection history.
• version – Displays the version information of the listener.
• reload – Forces a read of the configuration file in order for new settings to take effect without stopping and starting the listener.
• save_config – Creates a backup of the existing listener.ora file and saves changes to the current version.
• trace – Sets the trace level to one of the following – OFF, USER, ADMIN, or SUPPORT.
• spawn – Spawns a program that runs with an alias in the listener.ora file.
• dbsnmp_start – Starts the DBSNMP subagent.
• dbsnmp_stop – Stops the DBSNMP subagent.
• dbsnmp_status – Displays the status of the DBSNMP subagent.
• change_password – Sets a new password for the listener.
• quit and exit – Exits the utility.
• set – Changes the value of any parameter. Everything that can be shown can be set.
• show – Displays current parameter settings.