CentOS7 reset脚本,用于初始化新的虚拟机

能用，有待完善

CentOS7测试

哈哈

#!/bin/bash

#**************************************************************

#Author:                     9527

#QQ:                         5ssssssss

#Date:                       2019-08-01

#FileName:                   reset.sh

#URL:                        https://cnblogs.com

#Description:                The test script

#Copyright (C):              2019 Copyright ©  站点名称  版权所有

#************************************************************

#set -e

RED="\033[0;31m"

GREEN="\033[0;32m"

NO_COLOR="\033[0m"

# 修改别名

modify_alias() {

cat >> ~/.bashrc <<EOF

alias cdnet='cd /etc/sysconfig/network-scripts/'

alias editnet='vim /etc/sysconfig/network-scripts/ifcfg-ens33'

alias rm='rm -i'

alias scandisk="echo ' - - - ' > /sys/class/scsi_host/host0/scan;echo ' - - - ' > /sys/class/scsi_host/host1/scan;echo ' - - - ' > /sys/class/scsi_host/host2/scan"

EOF

}

# 修改命令提示符

modify_PS1() {

    echo 'PS1="\[\e[1;34m\][\u@\h \W]\\$\[\e[0m\] "' >> /etc/profile.d/env.sh

}

# 安装基本软件

install_software() {

    yum install   gcc gcc-c++ glibc glibc-devel pcre pcre-devel openssl  openssl-devel systemd-devel zlib-devel  vim lrzsz tree screen  lsof tcpdump wget  ntpdate net-tools iotop bc  zip unzip nfs-utils -y

}

# 替换yum源

replace_yum() {

    #wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

    curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

    sed -i -e '/mirrors.cloud.aliyuncs.com/d' -e '/mirrors.aliyuncs.com/d' /etc/yum.repos.d/CentOS-Base.repo

    #wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo

    curl -o /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo

    yum makecache

}

# vim

# vimrc复制过来

modify_vimrc() {

cat > ~/.vimrc <<EOF

set ignorecase

set cursorline

set autoindent

set ai

autocmd BufNewFile *.sh exec ":call SetTitle()"

func SetTitle()

        if expand("%:e") == 'sh'

        call setline(1,"#!/bin/bash")

        call setline(2,"#**************************************************************")

        call setline(3,"#Author:                     Linus")

        call setline(4,"#QQ:                         599503252")

        call setline(5,"#Date:                       ".strftime("%Y-%m-%d"))

        call setline(6,"#FileName:                   ".expand("%"))

        call setline(7,"#URL:                        https://blog.51cto.com/14012942")

        call setline(8,"#Description:                Initialize the new server")

        call setline(9,"#Copyright (C):              ".strftime("%Y")." Copyright ©  站点名称  版权所有")

        call setline(10,"#************************************************************")

        call setline(11,"")

        endif

endfunc

autocmd BufNewFile * normal G

EOF

}

# 关闭selinux和firewalld

iptables_selinux_stop() {

    sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config

    setenforce 0

    systemctl stop firewalld

    systemctl disable firewalld

}

# 判断是不是root

judge_root() {

    [ $(id -u) != "0" ] && { echo -e "${RED}Error:${NO_COLOR} You must be root to run this script."; exit 1; }

}

# 判断是不是CentOS7

Check_release() {

    if [ -f /etc/redhat-release ];then

        release="centos"

        version=`sed -r 's/.* ([0-9]+)\..*/\1/' /etc/redhat-release`

	if [ "$version" = "7" ];then

	    echo "Current release: CentOS7."

	else {

	    echo -e "[${RED}Error${NO_COLOR}] This script can only be running on CentOS7."

	    exit 1

	}

	fi

    else {

        echo -e "[${RED}Error${NO_COLOR}] This script can only be running on CentOS7."

	exit 1

    }

    fi

}

########################时区调整########################

timezone_adjust(){

    ln -sf  /usr/share/zoneinfo/Asia/Shanghai /etc/localtime

}

#修改网卡为eth0

modify_eth_card() {

   ip a | grep -q eth0

   if [ "$?" -eq 1 ];then

       sed -ri '/^GRUB_CMDLINE/s/(.*)"/\1 net.ifnames=0"/' /etc/default/grub

       grub2-mkconfig -o /boot/grub2/grub.cfg

   fi

}

#自动补全

bash-completion() {

    yum install bash-completion -y

    source /usr/share/bash-completion/bash_completion

}

main() {

   judge_root

   Check_release

   replace_yum

   install_software

   iptables_selinux_stop

   modify_alias

   modify_vimrc

   timezone_adjust

   modify_PS1

   modify_eth_card

   bash_completion

}

main