四、创建用户、路径，编辑环境变量

1. 建立组用户，配置密码
   /usr/sbin/groupadd -g 1001 oinstall
   /usr/sbin/groupadd -g 1002 dba
   /usr/sbin/groupadd -g 1003 oper
   /usr/sbin/useradd -u 502 -g oinstall -G dba,oper oracle

2. 建立目录
   mkdir -p /u01/app/oraInventory
   mkdir -p /u01/app/oracle/cfgtoollogs
   mkdir -p /u01/app/oracle/product/11.2.0.4/db_1
   chown -R oracle:oinstall /u01/app/oraInventory
   chown -R oracle:oinstall /u01/app/oracle
   chmod -R 775 /u01/app/oraInventory
   chmod -R 775 /u01/app/oracle

3. 环境变量
   oracle 用户
   su - oracle
   vi .bash_profile
   export TMP=/tmp
   export ORACLE_SID=suntime
   export ORACLE_BASE=/u01/app/oracle
   export ORACLE_HOME=/u01/app/oracle/product/11.2.0.4/db_1
   export TNS_ADMIN=$ORACLE_HOME/network/admin
   export NLS333=$ORACLE_HOME/ocommon/nls/admin/data
   export NLS_LANG=american_america.AL32UTF8
   export PATH=/usr/local/bin:/usr/bin:/bin:/usr/sbin:/usr/ucb:/usr/bin/X11:/sbin:.
   export PATH=$ORACLE_HOME/bin:$ORACLE_HOME/OPatch:$HOME/bin:$PATH
   umask 022
   if [ $USER = "oracle" ]; then
    if [ $SHELL = "/bin/ksh" ]; then
      ulimit -p 16384
      ulimit -n 65536
    else
      ulimit -u 16384 -n 65536
    fi
   fi

4. 配置 profile
   root 用户
   vi /etc/profile
   if [ $USER = "oracle" ]; then
   if [ $SHELL = "/bin/ksh" ]; then
    ulimit -p 16384
    ulimit -n 65536
   else
    ulimit -u 16384 -n 65536
   fi
   umask 022
   fi

5. 重启生效
   reboot
   使所有参数都生效