1#查看centos的版本号 2CentOS_version=`cut -d" " -f 4 /etc/centos-release | cut -d"." -f 1` 3#改变PS3格式 4PS3="Please enter the option you need to optimize: " 5#网卡名称 6network_name=`ip a|sed -r -n 's/.. (e.*):.*/\1/p'` 7#网卡的个数 8network_card_sum=`echo $network_name | wc -w` 9 10 11######################判断是否root用户###################### 12Judge_root() { 13if [[ `id | sed -r -n "s/uid=([0-9]{1,4}).*/\1/p"` != 0 ]];then 14 echo -e "\e[1;31mYou are not a root user and you are not allowed to set this optimization.\e[0m\n" 15 break 16fi 17} 18 19######################关闭防火墙和selinux###################### 20close_firewalld_selinux() { 21 Judge_root 22 if [ $CentOS_version == 7 ];then 23 systemctl stop firewalld && systemctl disable firewalld &> /dev/null 24 systemctl stop NetworkManager && systemctl disable NetworkManager &> /dev/null 25 sed -i "s/SELINUX=enforcing/SELINUX=disabled/" /etc/selinux/config 26 setenforce 0 27 elif [ $CentOS_version == 6 ];then 28 service firewalld stop &> /dev/null && chkconfig firewalld off &> /dev/null 29 service NetworkManager stop &> /dev/null && chkconfig NetworkManager off &> /dev/null 30 sed -i "s/SELINUX=enforcing/SELINUX=disabled/" /etc/selinux/config 31 setenforce 0 32 fi 33} 34 35#######################更换yum源###################### 36replace_yum() { 37 Judge_root 38 if [ $CentOS_version == 7 ];then 39 curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo &> /dev/null 40 sed -i -e '/mirrors.cloud.aliyuncs.com/d' -e '/mirrors.aliyuncs.com/d' /etc/yum.repos.d/CentOS-Base.repo 41 curl -o /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo &> /dev/null 42 rm -rf /var/cache/yum && yum makecache &> /dev/null 43 elif [ $CentOS_version == 6 ];then 44 curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo &> /dev/null 45 sed -i -e '/mirrors.cloud.aliyuncs.com/d' -e '/mirrors.aliyuncs.com/d' /etc/yum.repos.d/CentOS-Base.repo 46 curl -o /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo &> /dev/null 47 rm -rf /var/cache/yum && yum makecache &> /dev/null 48 fi 49} 50 51#######################下载基础包###################### 52download_package() { 53 yum install bash-completion ntpdate lrzsz bzip2 vim net-tools -y &> /dev/null 54 source /usr/share/bash-completion/bash_completion 55} 56 57#######################修改网卡名称###################### 58network_card_name() { 59 Judge_root 60 if [[ $network_card_sum != 1 ]];then 61 i=0 62 for card in `echo $network_name`;do 63 mv /etc/sysconfig/network-scripts/ifcfg-$card /etc/sysconfig/network-scripts/ifcfg-eth$i 64 sed -ri -e 's/(NAME=).*/\1eth$i/g' -e 's/(DEVICE=).*/\1eth$i/g' /etc/sysconfig/network-scripts/ifcfg-eth$i 65 let i++ 66 done 67 sed -i -r "/GRUB_CMDLINE_LINUX/s/(.*quiet)(.*)/\1 net.ifnames=0\2/g" /etc/default/grub 68 grub2-mkconfig -o /etc/grub2.cfg &> /dev/null 69 else 70 mv /etc/sysconfig/network-scripts/ifcfg-$network_name /etc/sysconfig/network-scripts/ifcfg-eth0 71 sed -ri -e 's/(NAME=).*/\1eth0/g' -e 's/(DEVICE=).*/\1eth0/g' /etc/sysconfig/network-scripts/ifcfg-eth0 72 sed -i -r "/GRUB_CMDLINE_LINUX/s/(.*quiet)(.*)/\1 net.ifnames=0\2/g" /etc/default/grub 73 grub2-mkconfig -o /etc/grub2.cfg &> /dev/null 74 fi 75} 76 77#######################添加alias###################### 78add_alias() { 79 if [ ! -f /etc/profile.d/env.sh ];then 80 echo -e "alias rm='echo RM is busy, please use MV'\nalias ping='ping -c4'" > /etc/profile.d/env.sh 81 else 82 sed -ri "s/(alias rm.*)/#\1/g" ~/.bashrc 83 sed -i -e "/alias rm/d" -e "/alias ping/d" /etc/profile.d/env.sh 84 echo -e "alias rm='echo RM is busy, please use MV'\nalias ping='ping -c4'" >> /etc/profile.d/env.sh 85 fi 86} 87 88 89#######################修改PS1###################### 90modify_PS1() { 91 Judge_root 92 if [ ! -f /etc/profile.d/env.sh ];then 93 echo 'export PS1="\[\e[32;1m\][\[\e[33;1m\]\u\[\e[31;1m\]@\[\e[33;1m\]\h \[\e[36;1m\]\W\[\e[32;1m\]]\[\e[34;1m\]\\\$ \[\e[0m\]"' > /etc/profile.d/env.sh 94 else 95 sed -i "/PS1/d" /etc/profile.d/env.sh 96 echo 'export PS1="\[\e[32;1m\][\[\e[33;1m\]\u\[\e[31;1m\]@\[\e[33;1m\]\h \[\e[36;1m\]\W\[\e[32;1m\]]\[\e[34;1m\]\\\$ \[\e[0m\]"' >> /etc/profile.d/env.sh 97 fi 98} 99 100#######################设置.vimrc###################### 101modify_vimrc() { 102cat > /root/.vimrc <<EOF 103set encoding=utf-8 "字符编码设置 104set syntax=on "语法高亮 105set completeopt=preview,menu "代码补全 106set smartindent "开启新行时使用智能自动缩进 set autoindent自动缩进,等价于set ai 107set number "显示行号，vim临时添号行号可以写成set nu，去除行号可以写成set nonu 108set history=500 "历史记录数 109set ignorecase "搜索忽略大小写 110set ruler "显示标尺 111set showcmd "输入的命令显示出来，看的清楚些 112set tabstop=4 "Tab键的宽度 113set shiftwidth=4 "这个是用于程序中自动缩进所使用的空白长度指示的 114set expandtab "使代码风格尽量保持一致，一般不允许在代码使用TAB符，而以2个空格代之。 115set softtabstop=4 "按下tab键，插入的是空格和tab制表符的混合 116set cursorline "设置光标行线 117function AddshTitle() 118call setline(1,"#!/bin/bash") 119call setline(2,"#*************************************************************************************") 120call setline(3,"#-*- coding:utf-8 -*-") 121call setline(4,"#File : " . expand("%")) 122call setline(5,"#Author : Cloud_zeng") 123call setline(6,"#Date : " . strftime("%F %T")) 124call setline(7,"#*************************************************************************************") 125call setline(8,"") 126endf 127function AddpyTitle() 128call setline(1,"#!/usr/bin/env python") 129call setline(2,"#*************************************************************************************") 130call setline(3,"#-*- coding:utf-8 -*-") 131call setline(4,"#File : " . expand("%")) 132call setline(5,"#Author : Cloud_zeng") 133call setline(6,"#Date : " . strftime("%F %T")) 134call setline(7,"#*************************************************************************************") 135call setline(8,"") 136endf 137autocmd BufNewFile *.sh exec ":call AddshTitle()" 138autocmd BufNewFile *.py exec ":call AddpyTitle()" 139autocmd BufNewFile * normal G 140EOF 141} 142 143#######################修改时区###################### 144automatic_update_time(){ 145 yum install cronie -y &> /dev/null 146 ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime 147 hwclock &> /dev/null 148 echo '*/10 * * * * /usr/sbin/ntpdate -u ntp.aliyun.com &> /dev/null' >> /var/spool/cron/root 149 systemctl restart crond 150} 151 152#######################ssh调整###################### 153ssh_adjust(){ 154 Judge_root 155 sed -ri -e 's/^(GSSAPIAuthentication ).*/\1no/' -e 's/#(UseDNS.*)/\1/' /etc/ssh/sshd_config 156 systemctl restart sshd 157} 158 159#######################最大文件打开数###################### 160limits_tune(){ 161Judge_root 162echo ' 163* soft nofile 128000 164* hard nofile 256000 165 166root soft nofile 128000 167root hard nofile 256000 168' >> /etc/security/limits.conf 169} 170 171 172 173#######################安装python3###################### 174add_python3() { 175 Judge_root 176 yum install gcc libffi-devel zlib-devel readline-devel -y &> /dev/null 177 cd /usr/local/src/ 178 wget https://www.python.org/ftp/python/3.7.4/Python-3.7.4.tar.xz &> /dev/null 179 tar xf Python-3.7.4.tar.xz && cd Python-3.7.4 180 mkdir -p /usr/local/python3 181 ./configure --prefix=/usr/local/python3 182 make && make install 183 sed -ri "s@^(^PATH=)(.*)@\1/usr/local/python3/bin:\2@g" .bash_profile
cat > /usr/local/python3/site-packages/tab.py <<EOF
import sys,readline,rlcompleter,atexit,os
readline.parse_and_bind('tab: complete')
histfile = os.path.join(os.environ['HOME'], '.pythonhistory')
try:
readline.read_history_file(histfile)
except IOError:
pass
atexit.register(readline.write_history_file, histfile)
atexit.register(readline.write_history_file, histfile)
EOF
echo 'export PYTHONSTARTUP=/usr/local/python3/site-packages/tab.py' >> .bash_profile
source ~/.bash_profile
1} 2 3select choice in download_package replace_yum close_firewalld_selinux add_alias network_card_name modify_PS1 modify_vimrc automatic_update_time ssh_adjust limits_tune add_python3 all quit;do 4 5case $choice in 6download_package) 7 download_package 8 echo -e "\e[1;33mBasic package download completed\e[0m\n" 9 ;; 10replace_yum) 11 replace_yum 12 echo -e "\e[1;33mYum source replacement is complete\e[0m\n" 13 ;; 14close_firewalld_selinux) 15 close_firewalld_selinux 16 echo -e "\e[1;33mFirewalld and selinux have been closed\e[0m\n" 17 ;; 18network_card_name) 19 network_card_name 20 echo -e "\e[1;33mThe NIC name has been modified, \e[1;31mbut it needs to be restarted to take effect.\e[0m\n" 21 ;; 22modify_PS1) 23 modify_PS1 24 echo -e "\e[1;33mPS1 has been modified\e[0m\n" 25 ;; 26modify_vimrc) 27 modify_vimrc 28 echo -e "\e[1;33m.vimrc has been set up\e[0m\n" 29 ;; 30automatic_update_time) 31 automatic_update_time 32 echo -e "\e[1;33mSet automatic update time to complete\e[0m\n" 33 ;; 34ssh_adjust) 35 ssh_adjust 36 echo -e "\e[1;33mssh service has been tuned to complete\e[0m\n" 37 ;; 38limits_tune) 39 limits_tune 40 echo -e "\e[1;33mThe maximum number of open files has been set.\e[0m\n" 41 ;; 42add_alias) 43 add_alias 44 echo -e "\e[1;33mAlias setting completed\e[0m\n" 45 ;; 46add_python3) 47 add_python3 48 echo -e "\e[1;33mPython3 installed completed\e[0m\n" 49 ;; 50all) 51 download_package 52 replace_yum 53 close_firewalld_selinux 54 network_card_name 55 modify_PS1 56 modify_vimrc 57 automatic_update_time 58 ssh_adjust 59 limits_tune 60 add_alias 61 echo -e "\e[1;31mAll scripts are executed, if circumstances permit. Please restart, if not, then reconnect. Take effect some configurations\e[0m" 62 exit 63 ;; 64quit) 65 echo -e "\e[1;31mSome profiles need to be reconnected to take effect\e[0m\n" 66 exit 67 ;; 68esac 69done