196 lines
6.6 KiB
Bash
196 lines
6.6 KiB
Bash
#!/usr/bin/bash
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# 定义彩色输出函数
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color_echo() {
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case $1 in
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"red")
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echo -e "\033[31m$2\033[0m"
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;;
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"green")
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echo -e "\033[32m$2\033[0m"
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;;
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"yellow")
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echo -e "\033[33m$2\033[0m"
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;;
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"blue")
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echo -e "\033[34m$2\033[0m"
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;;
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"purple")
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echo -e "\033[35m$2\033[0m"
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;;
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"cyan")
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echo -e "\033[36m$2\033[0m"
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;;
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"white")
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echo -e "\033[37m$2\033[0m"
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;;
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*)
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echo "$2"
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;;
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esac
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}
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# 输出菜单
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list() {
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color_echo "cyan" "--------------------------------------"
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color_echo "cyan" "------------性能优化工具箱------------"
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color_echo "cyan" "--------------------------------------"
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color_echo "green" "1. 更换 YUM 源"
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color_echo "green" "2. 关闭防火墙"
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color_echo "green" "3. 时间同步"
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color_echo "green" "4. 创建用户"
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color_echo "green" "5. 删除用户"
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color_echo "green" "6. 安装常用软件"
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color_echo "green" "7. 内存使用情况"
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color_echo "green" "8. 磁盘使用情况"
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color_echo "green" "9. 服务器信息"
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color_echo "green" "10 CPU使用情况"
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color_echo "green" "11. 退出"
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color_echo "cyan" "--------------------------------------"
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}
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# 更换 YUM 源
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yuan() {
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color_echo "yellow" "正在更换 YUM 源..."
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rm -rf /etc/yum.repos.d/*
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if curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo &>/dev/null && \
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curl -o /etc/yum.repos.d/epel.repo https://mirrors.aliyun.com/repo/epel-7.repo &>/dev/null; then
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yum clean all
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yum makecache fast
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color_echo "green" "YUM 源更换完成！"
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else
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color_echo "red" "YUM 源更换失败，请检查网络或链接。"
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fi
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}
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# 关闭防火墙
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fire() {
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color_echo "yellow" "正在关闭防火墙..."
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systemctl stop firewalld
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systemctl disable firewalld
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setenforce 0 # 临时关闭 SELinux
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sed -ri 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config # 永久关闭 SELinux
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color_echo "green" "防火墙已关闭，SELinux 已禁用（需重启生效）。"
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}
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# 时间同步
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timed() {
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color_echo "yellow" "正在安装和同步时间..."
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if yum -y install ntpdate &>/dev/null; then
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ntpdate ntp1.aliyun.com
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color_echo "green" "时间同步成功！"
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else
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color_echo "red" "时间同步失败，请检查网络连接或 YUM 配置。"
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fi
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}
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# 创建用户
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user() {
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read -p "$(color_echo "yellow" "请输入要创建的用户名：")" name
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if id "$name" &>/dev/null; then
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color_echo "red" "用户 $name 已存在，请勿重复创建。"
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else
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useradd "$name"
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userpasswd=$(openssl rand -base64 8)
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echo "$userpasswd" | passwd --stdin "$name" &>/dev/null
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if [ $? -eq 0 ]; then
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echo "用户名：$name，密码：$userpasswd" >> /opt/user.txt
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color_echo "green" "用户 $name 创建成功，密码已存储在 /opt/user.txt 中。"
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else
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color_echo "red" "用户创建失败，请检查系统配置。"
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fi
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fi
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}
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delete_user() {
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read -p "$(color_echo "yellow" "请输入要删除的用户名：")" name
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# 检查用户是否存在
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if id "$name" &>/dev/null; then
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# 删除用户及其主目录和邮件池
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userdel -r "$name"
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if [ $? -eq 0 ]; then
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# 如果用户删除成功，尝试从记录文件中移除该用户的密码信息
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sed -i "/^用户名：$name，/d" /opt/user.txt
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color_echo "green" "用户 $name 已成功删除。"
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else
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color_echo "red" "用户删除失败，请检查系统配置。"
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fi
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else
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color_echo "red" "用户 $name 不存在，无需删除。"
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fi
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}
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# 安装常用软件
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anzhuang() {
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color_echo "yellow" "正在安装常用软件（vim、lsof、unzip、wget）..."
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if yum -y install vim lsof unzip wget &>/dev/null; then
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color_echo "green" "常用软件安装完成！"
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else
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color_echo "red" "软件安装失败，请检查 YUM 源配置。"
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fi
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}
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mem() {
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mem_total=$(free -m | awk 'NR==2 {print $2}')
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mem_used=$(free -m | awk 'NR==2 {print $3}')
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mem_free=$(free -m | awk 'NR==2 {print $4}')
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mem_cache=$(free -m | awk 'NR==2 {print $6}')
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mem_s=$((mem_used * 100 / mem_total))
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mem_f=$((100 - mem_s))
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color_echo "green" "内存的使用率：$mem_s%"
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color_echo "green" "内存的总量: $mem_total MB"
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color_echo "green" "内存的空闲率: $mem_f%"
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color_echo "green" "内存的缓存量: $mem_cache MB"
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color_echo "green" "内存的空闲量: $mem_free MB"
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}
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disk() {
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read -p "$(color_echo "yellow" "请输入分区名称:")" name
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case $name in
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"/")
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df -Th | awk 'NR==2 {print "总量:"$3,"使用:"$4,"空闲:"$5}' | while read line; do color_echo "green" "$line"; done
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;;
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"/boot")
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df -Th | awk 'NR==7 {print "总量:"$3,"使用:"$4,"空闲:"$5}' | while read line; do color_echo "green" "$line"; done
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;;
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*)
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color_echo "red" "无效的分区名称"
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;;
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esac
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}
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system_info() {
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cat /etc/redhat-release | awk '{print "系统版本号:"$4}' | while read line; do color_echo "green" "$line"; done
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color_echo "green" "内核版本为:`uname -r`"
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ip a | grep "2:" | awk -F: '{print "网卡名称:"$2}' | while read line; do color_echo "green" "$line"; done
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ip a | grep "inet " | awk '{print $2}' | awk -F "/" '{print "IP地址是:"$1}' | while read line; do color_echo "green" "$line"; done
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}
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cpu_info() {
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w | awk -F: 'NR==1 {print "CPU的平均负载:"$NF}' | while read line; do color_echo "green" "$line"; done
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vmstat | awk 'NR==3 {print "CPU空闲率:"$(NF-2)}' | while read line; do color_echo "green" "$line"; done
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cpu_id=$(vmstat | awk 'NR==3 {print $(NF-2)}')
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cpu_free=$((100 - cpu_id))
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color_echo "green" "CPU使用率: $cpu_free%"
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}
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# 主循环
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while true; do
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list
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read -p "$(color_echo "yellow" "请输入您的选项（1-11）：")" num
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case $num in
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1) yuan; sleep 2 ;;
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2) fire; sleep 2 ;;
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3) timed; sleep 2 ;;
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4) user; sleep 2 ;;
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5) delete_user; sleep 2;;
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6) anzhuang; sleep 2 ;;
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7) mem; sleep 2;;
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8) disk; sleep 2;;
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9) system_info; sleep 2;;
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10) cpu_info; sleep 2;;
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11) color_echo "cyan" "退出工具箱，感谢使用！"; exit ;;
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*) color_echo "red" "输入无效，请输入数字 1-11 选择功能。"; sleep 2 ;;
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esac
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done |