使用oracle用户
[root@localhost ~]# su - oracle
查看监听与启动
[oracle@localhost ~]$ lsnrctl status
[oracle@localhost ~]$ lsnrctl start
dba身份登陆orcale
[oracle@localhost ~]$ sqlplus /nolog
SQL> connect sys/ as sysdba
SQL> startup
SQL> shutdown immediate
问题1：
bash: sqlplus: command not found
[root@localhost ~]# ln -s $ORACLE_HOME/bin/sqlplus /usr/bin
问题2：启动失败
SQL> startup pfile='/opt/orcale/...'
