oracle安装前环境检查

oracle安装前需要检查系统环境，需保证系统中有如下包：

binutils-2.17.50.0.6，compat-libstdc++-33-3.2.3，compat-libstdc++-33-3.2.3 (32 bit)，elfutils-libelf-0.125，elfutils-libelf-devel-0.125，gcc-4.1.2，gcc-c++-4.1.2，glibc-2.5-24，glibc-2.5-24 (32 bit)，glibc-common-2.5，glibc-devel-2.5，glibc-devel-2.5 (32 bit)，

glibc-headers-2.5，ksh-20060214，libaio-0.3.106，libaio-0.3.106 (32 bit)，libaio-devel-0.3.106，libaio-devel-0.3.106 (32 bit)，libgcc-4.1.2，libgcc-4.1.2 (32 bit)，libstdc++-4.1.2，libstdc++-4.1.2 (32 bit)，libstdc++-devel 4.1.2，make-3.81，sysstat-7.0.2

可以用脚本自动执行

#!/bin/bash
for n in  binutils compat-libstdc++-33 elfutils-libelf elfutils-libelf-devel \
        gcc gcc-c++ glibc glibc-common glibc-devel glibc-headers ksh libaio \
        libaio-devel libgcc libgcc libstdc++ libstdc++-devel make sysstat ;do
    rpm -q $n >> /dev/null
    if [ "$?" = 0 ];then
        echo "$n already installed"
    else
        echo "$n should be installed"
        yum -y install $n >> /dev/null
        if [ "$?" = 0 ];then
                echo "$n has been installed successfully!"
        else echo "installed error"
        fi
    fi
done