94 lines
2.7 KiB
Bash
94 lines
2.7 KiB
Bash
#!/usr/bin/bash
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# 输出菜单
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list() {
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echo "--------------------------------------"
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echo "------------性能优化工具箱------------"
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echo "--------------------------------------"
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echo "1. 更换 YUM 源"
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echo "2. 关闭防火墙"
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echo "3. 时间同步"
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echo "4. 创建用户"
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echo "5. 安装常用软件"
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echo "6. 退出"
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echo "--------------------------------------"
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}
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# 更换 YUM 源
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yuan() {
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echo "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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echo "YUM 源更换完成！"
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else
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echo "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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echo "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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echo "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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echo "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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echo "时间同步成功！"
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else
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echo "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 "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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echo "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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echo "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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echo "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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# 安装常用软件
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anzhuang() {
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echo "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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echo "常用软件安装完成！"
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else
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echo "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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# 主循环
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while true; do
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list
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read -p "请输入您的选项（1-6）：" 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) anzhuang; sleep 2 ;;
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6) echo "退出工具箱，感谢使用！"; exit ;;
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*) echo "输入无效，请输入数字 1-6 选择功能。"; sleep 2 ;;
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esac
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done
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