oracle数据库安装预环境一键处理脚本

　　#!/bin/bash

　　#增加安装Oracle所需的用户和组

　　groupadd oinstall

　　groupadd dba

　　useradd -g oinstall -G dba -d /home/oracle -m oracle

　　#创建安装Oracle所需的目录

　　mkdir -p /u01/app/oracle/product/10.2.0/db_1

　　chmod -R 775 /u01

　　chown -R oracle:oinstall /u01

　　#改变Oracle参数

　　echo &kernel.shmmni = 4096& >> /etc/sysctl.conf

　　echo &kernel.sem = 250 32000 100 128& >> /etc/sysctl.conf

　　echo &fs.file-max = 65536& >> /etc/sysctl.conf

　　echo &net.ipv4.ip_local_port_range = 1024 65000& >> /etc/sysctl.conf

　　echo &net.core.rmem_default=262144& >> /etc/sysctl.conf

　　echo &net.core.rmem_max=262144& >> /etc/sysctl.conf

　　echo &net.core.wmem_default=262144& >> /etc/sysctl.conf

　　echo &net.core.wmem_max=262144& >> /etc/sysctl.conf

　　/sbin/sysctl -p

　　#设置Oracle环境变量

　　echo &ORACLE_BASE=/u01/app/oracle& >> /home/oracle/.bash_profile

　　echo &ORACLE_HOME=$ORACLE_BASE/product/10.2.0/db_1& >> /home/oracle/.bash_profile

　　echo &ORACLE_SID=cmtest& >> /home/oracle/.bash_profile

　　echo &PATH=$PATH:$HOME/bin:$ORACLE_HOME/bin& >> /home/oracle/.bash_profile

　　echo &LD_LIBRARY_PATH=$ORACLE_HOME/lib:/usr/lib& >> /home/oracle/.bash_profile

　　echo &export PATH ORACLE_BASE ORACLE_HOME ORACLE_SID LD_LIBRARY_PATH& >> /home/oracle/.bash_profile

　　source /home/oracle/.bash_profile

　　#设置Oracle用户shell limit

　　echo &oracle soft nproc 2047& >> /etc/security/limits.conf

　　echo &oracle hard nproc 16384& >> /etc/security/limits.conf

　　echo &oracle soft nofile 1024& >> /etc/security/limits.conf

　　echo &oracle hard nofile 65536& >> /etc/security/limits.conf

　　#修改Linux版本号

　　cp /etc/redhat-release /etc/redhat-release.`date -I`.bak

　　echo &redhat-4& > /etc/redhat-release

　　#修改/etc/hosts文件

　　cp /etc/hosts /etc/hosts.`date -I`.bak

　　echo &# Do not remove the following line, or various programs& > /etc/hosts

　　echo &# that require network functionality will fail.& >> /etc/hosts

　　echo &`ifconfig eth0 |grep &inet addr& |cut -d: -f2 |cut -d& & -f1`  `more /etc/sysconfig/network | grep HOSTNAME | cut -c10-`  localhost& >> /etc/hosts

　　echo &127.0.0.1 `more /etc/sysconfig/network | grep HOSTNAME | cut -c10-`& >> /etc/hosts

　　#yum安装必要包

　　yum -y install setarch-2*  make-3*  glibc-2*  libaio-0*  compat-libstdc++-33-3*  compat-gcc-34-3*  compat-gcc-34-c++-3*  gcc-4*  libXp-1*  openmotif-2*  compat-db-4*