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