在自己的虚拟机上使用的基于CentOS6的系统初始化脚本

#!/bin/bash
#
#Filename:system_init.sh
#Description:系统安装完成后，对系统进行一些配置，以符合自己的试验环境
#Author:renpingsheng
#Email:995883352@qq.com
#Version:1.5
#Date:2018.5.21


#更改selinux的配置文件，禁用selinux，成功则打印“配置完成”
sed -i.bak '1,$s@SELINUX=enforcing@SELINUX=disabled@g' /etc/selinux/config && echo "SElinux is setting OK!"

#定义一些常用的别名
cat <<EOF >>/root/.bashrc && echo "The file bashrc is setting ok!"
alias "cdnet"="cd /etc/sysconfig/network-scripts/"
alias "grep"="grep --color=auto"
alias "renet"="service network restart"
EOF

cd /etc/yum.repos.d

mkdir repo_bak/

mv *.repo repo_bak/

wget http://mirrors.163.com/.help/CentOS7-Base-163.repo

wget http://mirrors.aliyun.com/repo/Centos-7.repo

yum install -y epel-release

#清空yum缓存，生成新的yum缓存
yum clean all && yum makecache &> /dev/null

#安装一些常用的软件
for software in vim lrzsz wget openssl zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel mysql-devel dig python-devel xz-devel expat-devel man python-setuptools python-imaging python-ldap MySQL-python python-memcached python-urllib3 ; do
    yum install -y $software >> /dev/null && echo "The package $software is install OK!"
done
#释放定义的变量
unset software

#安装系统开发组件
yum groupinstall -y "Development tools" >> /dev/null && echo "Development tools suite is installed ok!"

#配置vim别名
echo "alias vi=vim" >> /root/.bashrc

#配置vim环境
cat <<EOF >> /root/.vimrc && echo "The vimrc file is setting ok!"
set hlsearch
set nu
set ic
set sm
syntax on
syntax enable
set ts=4
set autoindent
set expandtab
set shiftwidth=4
set cursorline
set showmatch
let python_highlight_all = 1
set fileformat=unix
EOF

service iptables stop
chkconfig iptables off

#使.bashrc文件立即生效
source /root/.bashrc

#使.vimrc文件立即生效
source /root/.vimrc

#重启系统
shutdown -r now