在linux操作系统下，如何启动服务与监听命令?首先必须以oracle用户登陆：

1、启动数据库：

以下为引用的内容：
oracle@suse92:~> sqlplus /nolog

SQL*Plus: Release 9.2.0.4.0 - Production on Fri Jan 20 02:29:37 2006

Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.

SQL> connect /as sysdba
Connected to an idle instance.
SQL> startup
ORACLE instance started.

Total System Global Area 135352820 bytes
Fixed Size 455156 bytes
Variable Size 109051904 bytes
Database Buffers 25165824 bytes
Redo Buffers 679936 bytes
Database mounted.

2、关闭数据库：

以下为引用的内容：
oracle@suse92:~> sqlplus /nolog

SQL*Plus: Release 9.2.0.4.0 - Production on Fri Jan 20 02:29:37 2006

Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.

SQL> connect /as sysdba
Connected to an idle instance.
SQL> shutdwon abort;

3、启动监听器

以下为引用的内容：
oracle@suse92:~> lsnrctl start

4、停止监听器

以下为引用的内容：
oracle@suse92:~> lsnrctl stop

5、查看监听器状态

以下为引用的内容：
oracle@suse92:~> lsnrctl
LSNRCTL> status
LSNRCTL> exit