隐藏oracle命令行登陆密码

1. 命令行隐藏数据库用户名和密码

#!/bin/kshheading=onSYSTEM_CONNECT="dbname/dbpass"$ORACLE_HOME/bin/sqlplus -s /nolog <<!!set line 200set feedback offset heading ${heading}connect ${SYSTEM_CONNECT};column global_name heading "Instance" format a15column sessions_max heading "Max" format 9999column sessions_warning heading "Warning" format 9999column sessions_current heading "Current" format 9999column sessions_highwater heading "Highwater" format 9999select    global_name,sessions_max,sessions_warning,    sessions_current-1 sessions_current,    sessions_highwaterfrom    v\$license,global_name ;quit;!!

2. 获取系统当前启动的数据库实例

ps -ef | grep ora_pmon | grep -vE 'grep|sed' | sed -e 's/^.*ora_pmon_//'