写个脚本来启动数据库
每次打开Linux总要做写重复的动作，那就是启动监听，启动数据库，查看数据库状态。麻烦还是写个shell脚本来控制方便些：在$ORACLE_HOME/bin下有个dbstart脚本可以启动数据库，但是执行之后提示：Failed to auto-start Oracle Net Listene using /ade/vikrkuma_new/oracle/bin/tnslsnr我们来查看下dbstart是怎么写的，直接查询查找文件中的报错来自哪里：/Failed to auto-start Oracle Net[oracle@localhost bin]$ grep "Failed to auto-start Oracle Net" dbstart echo "Failed to auto-start Oracle Net Listene using $ORACLE_HOME_LISTNER/bin/tnslsnr"在这之前有一句：ORACLE_HOME_LISTNER=/ade/vikrkuma_new/oracle开来是路径设错了，修改为：ORACLE_HOME_LISTNER=$ORACLE_HOME报错重新执行下，没报错，但是数据库却没有起来，修改文件：vi /etc/oratab修改为：orclsid:/home/oracle/oracle/product/10.2.0/db_1:Y记住，后面为Y再起，报错：查看启动日志：$ORACLE_HOME/startup.log[oracle@localhost bin]$ cat $ORACLE_HOME/startup.log/home/oracle/oracle/product/10.2.0/db_1/bin/dbstart: Starting up database "orclsid"Sat Apr 6 21:58:21 CST 2013SQL*Plus: Release 10.2.0.1.0 - Production on Sat Apr 6 21:58:21 2013Copyright (c) 1982, 2005, Oracle. All rights reserved.SQL> ERROR:ORA-01031: insufficient privilegesSQL> ORA-01031: insufficient privilegesSQL> /home/oracle/oracle/product/10.2.0/db_1/bin/dbstart: Database instance "orclsid" warm started.看来是权限问题，突然想到我之前修改了Oracle的默认认证方式，禁用了操作系统登录，估计在脚本里面使用的是操作系统登录：一查，果然是这个问题：修改为：conn sys/lubinsu as sysdba重启下：[oracle@localhost bin]$ dbstartProcessing Database instance "orclsid": log file /home/oracle/oracle/product/10.2.0/db_1/startup.log/home/oracle/oracle/product/10.2.0/db_1/bin/dbstart: Starting up database "orclsid"Sat Apr 6 22:25:27 CST 2013

SQL*Plus: Release 10.2.0.1.0 - Production on Sat Apr 6 22:25:27 2013
Copyright (c) 1982, 2005, Oracle. All rights reserved.
SQL> Connected to an idle instance.SQL> ORACLE instance started.
Total System Global Area 285212672 bytesFixed Size 1218968 bytesVariable Size 100664936 bytesDatabase Buffers 176160768 bytesRedo Buffers 7168000 bytesDatabase mounted.Database opened.SQL> Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - ProductionWith the Partitioning, OLAP and Data Mining options
/home/oracle/oracle/product/10.2.0/db_1/bin/dbstart: Database instance "orclsid" warm started.看来已经起起来了，查看进程是否存在[oracle@localhost bin]$ ps -ef | grep ora_pmonoracle 14658 1 0 22:25 ? 00:00:00 ora_pmon_orclsidoracle 14806 9470 0 22:26 pts/1 00:00:00 grep ora_pmonNICE我们继续来写脚本：#!/bin/bash # # chkconfig: 2345 89 20 # description: starts the oracle listener and instance
status() { pid=`ps -ef | grep ora_pmon | grep -v grep | awk '{print $8}'` if [ "X$pid" = "X" ] then echo "oracle10g is not running." exit 1 else echo "oracle10g is running." exit 0 fi}
case "$1" in start) #startup the listener and instance echo -n "oracle begin to startup: " su - oracle -c "lsnrctl start" su - oracle -c dbstart echo "oracle10g started" ;; stop) # stop listener, apache and database echo -n "oracle begin to shutdown:" su - oracle -c "lsnrctl stop" su - oracle -c dbshut echo "oracle10g shutdowned" ;; reload|restart) $0 stop $0 start ;; 'status') status ;; *) echo "Usage: ora10g [start|stop|reload|restart]" exit 1 esac exit 0
赋给执行权限chmod a+x oracle10g我们可以通过这个脚本来查看oracle的状态，启动，关闭或者重启数据库，方便许多。