胖虎的工具箱-编程导航 胖虎的工具箱-编程导航

系统优化脚本支持Ubuntu和CentOS

2年前 (2022) 程序员胖胖胖虎阿
276 0 0

系统优化脚本支持Ubuntu和CentOS

安装系统后经常有一些基础的系统优化安装，本人比较懒，写了一个脚本，可以后期加入其他优化方面。

仓库地址：https://github.com/cby-chen/OS

后续可能会继续更新脚本

可以通过我的一键命令执行 bash -c "$(curl -L https://www.oiox.cn/os.sh)"

shell脚本如下

#!/bin/bash
os=$(cat /etc/os-release 2>/dev/null | grep ^ID= | awk -F= '{print $2}')

function selinuxset(){
    selinux_status=$(grep -c "SELINUX=disabled" /etc/sysconfig/selinux)
    echo "========================禁用SELINUX========================"
 if [ "$selinux_status" -eq 0 ];then
    sed  -i "s#SELINUX=enforcing#SELINUX=disabled#g" /etc/sysconfig/selinux
    setenforce 0
    grep SELINUX=disabled /etc/sysconfig/selinux
    getenforce
 else
    echo 'SELINUX已处于关闭状态'
    grep SELINUX=disabled /etc/sysconfig/selinux
    getenforce
 fi
    action "完成禁用SELINUX" /bin/true
    echo "==========================================================="
    sleep 3
}

function firewalldset(){
    echo "========================关闭firewalld======================="
    echo '关闭防火墙'
    systemctl  disable --now firewalld
    echo '验证如下'
    systemctl list-unit-files | grep firewalld
    echo '生产环境下建议启用'
    echo "==========================================================="
    sleep 3
}

function ufwset(){
    echo "========================关闭ufw============================"
    echo '关闭防火墙'
    systemctl  disable --now ufw
    echo '验证如下'
    systemctl list-unit-files | grep ufw
    echo '生产环境下建议启用'
    echo "==========================================================="
    sleep 3
}

function limitsset(){
    echo "======================修改文件描述符========================"
    echo '加大系统文件描述符最大值'
    {
    echo '* soft nofile 65536'
    echo '* hard nofile 65536'
    echo '* soft nproc 65536'
    echo '* hard nproc 65536'
    } >> file
    echo '查看配置内容'
    cat /etc/security/limits.conf
    echo '设置软硬资源限制'
    ulimit -Sn ; ulimit -Hn
    echo "==========================================================="
    sleep 3
}

function yumset(){
    echo "======================开始修改YUM源========================"
    echo '开始修改YUM源'
    sudo sed -e 's|^mirrorlist=|#mirrorlist=|g' -e 's|^#baseurl=http://mirror.centos.org|baseurl=https://mirrors.tuna.tsinghua.edu.cn|g' -i.bak /etc/yum.repos.d/CentOS-*.repo
    echo '开始安装常规软件'
    yum update -y
    yum install curl git wget ntpdate lsof net-tools telnet vim lrzsz tree nmap nc sysstat epel* -y
    echo "==========================================================="
    sleep 3
}

function aptset(){
    echo "======================开始修改APT源========================"
    echo '开始修改APT源'
    apt_stat=$(cat /etc/apt/sources.list | grep -v ^\# | awk -F/ '{print $3}' | grep -v ^$  | awk 'NR==1{print}')
    sudo sed -i "s/$apt_stat/mirrors.ustc.edu.cn/g" /etc/apt/sources.list
    echo '开始安装常规软件'
    apt update -y
    apt upgrade -y
    apt install vim htop net-tools lrzsz nmap telnet ntpdate sysstat curl git wget -y
    echo "==========================================================="
    sleep 3
}

function restartset(){
    echo "===================禁用ctrl+alt+del重启===================="
    rm -rf /usr/lib/systemd/system/ctrl-alt-del.target
    echo "完成禁用ctrl+alt+del重启"
    echo "==========================================================="
    sleep 3
}

function historyset(){
    echo "========================history优化========================"
    chk_his=$(cat /etc/profile | grep HISTTIMEFORMAT |wc -l)
    if [ $chk_his -eq 0 ];then
    cat >> /etc/profile <<'EOF'
#设置history格式
export HISTTIMEFORMAT="[%Y-%m-%d %H:%M:%S] [`whoami`] [`who am i|awk '{print $NF}'|sed -r 's#[()]##g'`]: "
#记录shell执行的每一条命令
export PROMPT_COMMAND='\
if [ -z "$OLD_PWD" ];then
    export OLD_PWD=$PWD;
fi;
if [ ! -z "$LAST_CMD" ] && [ "$(history 1)" != "$LAST_CMD" ]; then
    logger -t `whoami`_shell_dir "[$OLD_PWD]$(history 1)";
fi;
export LAST_CMD="$(history 1)";
export OLD_PWD=$PWD;'
EOF
    source /etc/profile
    else
    echo "优化项已存在。"
    fi
    echo "完成history优化" 
    echo "==========================================================="
    sleep 3
}

function helloset(){
    echo "========================欢迎界面优化========================"
    cat << EOF > /etc/profile.d/login-info.sh
#!/bin/sh
#
# @Time    : 2022-04-21
# @Author  : chenby
# @Desc    : ssh login banner
export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
shopt -q login_shell && : || return 0
echo -e "\033[0;32m

 #    #  ######  #       #        ####
 #    #  #       #       #       #    #
 ######  #####   #       #       #    #
 #    #  #       #       #       #    #
 #    #  #       #       #       #    #
 #    #  ######  ######  ######   ####        by chenby\033[0m"
# os
upSeconds="\$(cut -d. -f1 /proc/uptime)"
secs=\$((\${upSeconds}%60))
mins=\$((\${upSeconds}/60%60))
hours=\$((\${upSeconds}/3600%24))
days=\$((\${upSeconds}/86400))
UPTIME_INFO=\$(printf "%d days, %02dh %02dm %02ds" "\$days" "\$hours" "\$mins" "\$secs")
if [ -f /etc/redhat-release ] ; then
    PRETTY_NAME=\$(< /etc/redhat-release)
elif [ -f /etc/debian_version ]; then
   DIST_VER=\$(</etc/debian_version)
   PRETTY_NAME="\$(grep PRETTY_NAME /etc/os-release | sed -e 's/PRETTY_NAME=//g' -e  's/"//g') (\$DIST_VER)"
else
    PRETTY_NAME=\$(cat /etc/*-release | grep "PRETTY_NAME" | sed -e 's/PRETTY_NAME=//g' -e 's/"//g')
fi
if [[ -d "/system/app/" && -d "/system/priv-app" ]]; then
    model="\$(getprop ro.product.brand) \$(getprop ro.product.model)"
elif [[ -f /sys/devices/virtual/dmi/id/product_name ||
        -f /sys/devices/virtual/dmi/id/product_version ]]; then
    model="\$(< /sys/devices/virtual/dmi/id/product_name)"
    model+=" \$(< /sys/devices/virtual/dmi/id/product_version)"
elif [[ -f /sys/firmware/devicetree/base/model ]]; then
    model="\$(< /sys/firmware/devicetree/base/model)"
elif [[ -f /tmp/sysinfo/model ]]; then
    model="\$(< /tmp/sysinfo/model)"
fi
MODEL_INFO=\${model}
KERNEL=\$(uname -srmo)
USER_NUM=\$(who -u | wc -l)
RUNNING=\$(ps ax | wc -l | tr -d " ")
# disk
totaldisk=\$(df -h -x devtmpfs -x tmpfs -x debugfs -x aufs -x overlay --total 2>/dev/null | tail -1)
disktotal=\$(awk '{print \$2}' <<< "\${totaldisk}")
diskused=\$(awk '{print \$3}' <<< "\${totaldisk}")
diskusedper=\$(awk '{print \$5}' <<< "\${totaldisk}")
DISK_INFO="\033[0;33m\${diskused}\033[0m of \033[1;34m\${disktotal}\033[0m disk space used (\033[0;33m\${diskusedper}\033[0m)"
# cpu
cpu=\$(awk -F':' '/^model name/ {print \$2}' /proc/cpuinfo | uniq | sed -e 's/^[ \t]*//')
cpun=\$(grep -c '^processor' /proc/cpuinfo)
cpuc=\$(grep '^cpu cores' /proc/cpuinfo | tail -1 | awk '{print \$4}')
cpup=\$(grep '^physical id' /proc/cpuinfo | wc -l)
CPU_INFO="\${cpu} \${cpup}P \${cpuc}C \${cpun}L"
# get the load averages
read one five fifteen rest < /proc/loadavg
LOADAVG_INFO="\033[0;33m\${one}\033[0m / \${five} / \${fifteen} with \033[1;34m\$(( cpun*cpuc ))\033[0m core(s) at \033[1;34m\$(grep '^cpu MHz' /proc/cpuinfo | tail -1 | awk '{print \$4}')\033 MHz"
# mem
MEM_INFO="\$(cat /proc/meminfo | awk '/MemTotal:/{total=\$2/1024/1024;next} /MemAvailable:/{use=total-\$2/1024/1024; printf("\033[0;33m%.2fGiB\033[0m of \033[1;34m%.2fGiB\033[0m RAM used (\033[0;33m%.2f%%\033[0m)",use,total,(use/total)*100);}')"
# network
# extranet_ip=" and \$(curl -s ip.cip.cc)"
IP_INFO="\$(ip a | grep glo | awk '{print \$2}' | head -1 | cut -f1 -d/)\${extranet_ip:-}"
# Container info
CONTAINER_INFO="\$(sudo /usr/bin/crictl ps -a -o yaml 2> /dev/null | awk '/^  state: /{gsub("CONTAINER_", "", \$NF) ++S[\$NF]}END{for(m in S) printf "%s%s:%s ",substr(m,1,1),tolower(substr(m,2)),S[m]}')Images:\$(sudo /usr/bin/crictl images -q 2> /dev/null | wc -l)"
# info
echo -e "
 Information as of: \033[1;34m\$(date +"%Y-%m-%d %T")\033[0m
 
 \033[0;1;31mProduct\033[0m............: \${MODEL_INFO}
 \033[0;1;31mOS\033[0m.................: \${PRETTY_NAME}
 \033[0;1;31mKernel\033[0m.............: \${KERNEL}
 \033[0;1;31mCPU\033[0m................: \${CPU_INFO}
 \033[0;1;31mHostname\033[0m...........: \033[1;34m\$(hostname)\033[0m
 \033[0;1;31mIP Addresses\033[0m.......: \033[1;34m\${IP_INFO}\033[0m
 \033[0;1;31mUptime\033[0m.............: \033[0;33m\${UPTIME_INFO}\033[0m
 \033[0;1;31mMemory\033[0m.............: \${MEM_INFO}
 \033[0;1;31mLoad Averages\033[0m......: \${LOADAVG_INFO}
 \033[0;1;31mDisk Usage\033[0m.........: \${DISK_INFO} 
 \033[0;1;31mUsers online\033[0m.......: \033[1;34m\${USER_NUM}\033[0m
 \033[0;1;31mRunning Processes\033[0m..: \033[1;34m\${RUNNING}\033[0m
 \033[0;1;31mContainer Info\033[0m.....: \${CONTAINER_INFO}
"
EOF
    echo "==========================================================="
    sleep 3
}

function sshset(){
    echo "========================root登录优化========================"
    echo "生产环境不建议开启 设置root密码"
    read -p "输入root密码" rootpw
    echo "root:$rootpw" |chpasswd
    echo 'PermitRootLogin yes' >> /etc/ssh/sshd_config
    systemctl restart sshd
    echo "root密码修改为$rootpw"
    echo "==========================================================="
    sleep 3
}


function allin() {
    if [ "$os" = "\"centos\"" ]; then
        selinuxset
        firewalldset
        limitsset
        yumset
        restartset
        historyset
        helloset
    fi
    if [ "$os" = "ubuntu" ]; then
        sshset
        ufwset
        limitsset
        aptset
        restartset
        historyset
        helloset
    fi
}

function menu() {
    clear
    echo "#####################################################################"
    echo -e "#           ${RED}一键基础优化脚本${PLAIN}                        #"
    echo -e "# ${GREEN}作者${PLAIN}: chenby                                   #"
    echo -e "# ${GREEN}网址${PLAIN}: https://www.oiox.cn                      #"
    echo -e "# ${GREEN}版本${PLAIN}: V1.0                                     #"
    echo -e "# ${GREEN}说明${PLAIN}:                                          #"
    echo -e "#                                                               #"
    echo "####################################################################"
    echo " -------------"
    echo -e "  ${GREEN}1.${PLAIN}  一键优化"
    echo " -------------"
    echo -e "  ${GREEN}2.${PLAIN}  自定义优化"
    echo " -------------"
    echo -e "  ${GREEN}0.${PLAIN}   退出"
    echo " -------------"

    read -p " 请选择操作[0-2]：" chenby
    case $chenby in
        0)
            exit 0
            ;;
        1)
            allin
            ;;
        2)
            setun
            ;;
        *)
            colorEcho $RED " 请选择正确的操作！"
            exit 1
            ;;
    esac
}

function setun() {
    echo " -------------"
    echo -e "  ${GREEN}1.${PLAIN}  禁用SELINUX"
    echo " -------------"
    echo -e "  ${GREEN}2.${PLAIN}  关闭firewalld"
    echo " -------------"
    echo -e "  ${GREEN}3.${PLAIN}  关闭ufw"
    echo " -------------"
    echo -e "  ${GREEN}4.${PLAIN}  修改文件描述符"
    echo " -------------"
    echo -e "  ${GREEN}5.${PLAIN}  开始修改YUM源"
    echo " -------------"
    echo -e "  ${GREEN}6.${PLAIN}  开始修改APT源"
    echo " -------------"
    echo -e "  ${GREEN}7.${PLAIN}  禁用ctrl+alt+del重启"
    echo " -------------"
    echo -e "  ${GREEN}8.${PLAIN}  history优化"
    echo " -------------"
    echo -e "  ${GREEN}9.${PLAIN}  欢迎界面优化"
    echo " -------------"
    echo -e "  ${GREEN}10.${PLAIN} 设置root密码"
    echo " -------------"    
    echo -e "  ${GREEN}0.${PLAIN}  退出"
    echo " -------------"
    
    read -p " 请选择操作[0-2]：" cby
    case $cby in
        0)
            exit 0
            ;;
        1)
            if [ "$os" = "\"centos\"" ]; then
                selinuxset
            fi
            if [ "$os" = "ubuntu" ]; then
                echo 'Ubuntu无需设置'
            fi
            ;;
        2)
            if [ "$os" = "\"centos\"" ]; then
                firewalldset
            fi
            if [ "$os" = "ubuntu" ]; then
                echo 'Ubuntu无需设置'
            fi
            ;;
        3)
            if [ "$os" = "\"centos\"" ]; then
                echo 'CentOS无需设置'
            fi
            if [ "$os" = "ubuntu" ]; then
                ufwset
            fi
            ;;
        4)
            limitsset
            ;;
        5)
            if [ "$os" = "\"centos\"" ]; then
                yumset
            fi
            if [ "$os" = "ubuntu" ]; then
                echo 'Ubuntu无需设置'
            fi
            ;;
        6)
            if [ "$os" = "\"centos\"" ]; then
                echo 'CentOS无需设置'
            fi
            if [ "$os" = "ubuntu" ]; then
                aptset
            fi
            ;;
        7)
            restartset
            ;;
        8)
            historyset
            ;;
        9)
            helloset
            ;;
        10)
            if [ "$os" = "\"centos\"" ]; then
                echo 'CentOS无需设置'
            fi
            if [ "$os" = "ubuntu" ]; then
                sshset
            fi
            ;;
        *)
            colorEcho $RED " 请选择正确的操作！"
            exit 1
            ;;
    esac
}


if [ $(id -u) -eq 0 ];then
    menu
else
    echo "非root用户!请使用root用户！！！"
    exit 1
fi

关于

https://www.oiox.cn/

https://www.oiox.cn/index.php...

CSDN、GitHub、知乎、开源中国、思否、掘金、简书、华为云、阿里云、腾讯云、哔哩哔哩、今日头条、新浪微博、个人博客

全网可搜《小陈运维》

文章主要发布于微信公众号

版权声明：程序员胖胖胖虎阿 发表于 2022年10月13日 上午6:32。
转载请注明：系统优化脚本支持Ubuntu和CentOS | 胖虎的工具箱-编程导航

相关文章

IntelliJ IDEA正版激活码(IntelliJ IDEA专业版破解图文教程,永久激活IDEA)
程序员胖胖胖虎阿
287
IDEA2020破解教程(IntelliJ IDEA最新 激活码,最新有效IDEA激活码)
程序员胖胖胖虎阿
104
java SpringBoot登录验证token拦截器
程序员胖胖胖虎阿
327
Intellij IDEA专业版激活破解教程(IntelliJ IDEA2022激活破解教程,全年更新)
程序员胖胖胖虎阿
123
IDEA永久破解版(IntelliJ IDEA2022.2破解码最新有效IDEA激活码)
程序员胖胖胖虎阿
148
无意中发现了一位清华妹子的资料库！
程序员胖胖胖虎阿
95

暂无评论

暂无评论...
致力于称为最好的程序员导航网站

友链申请 免责声明 关于我们

Copyright © 2022  胖虎的工具箱-编程导航   陇ICP备2022001249号