linux下oracle启动
root> su - oracle 

[oracle@websvr1 oracle]$ sqlplus /nolog

SQL> connect / as sysdba

SQL> startup

SQL> quit

[oracle@websvr1 oracle]$ lsnrctl start

可用 [oracle@websvr1 oracle]$ lsnrctl status 查看监听是否已经启动

关闭步骤：

su - oracle

[oracle@websvr1 oracle]$ lsnrctl stop

[oracle@websvr1 oracle]$ sqlplus /nolog

SQL> connect / as sysdba

SQL> shutdown immediate

SQL> quit