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速盾网络:CDN原理是什么意思啊

沈芏 02-27 11:00 阅读 4
android

目录

1. 提示

2. 演示效果

2.1. 一级菜单

2.2. 二级菜单

2.3. 执行操作

3. 参考代码


1. 提示

本脚本主要实现多级菜单效果,并没有安装LAMP、LNMP环境,如果要用在实际生成环境中部署LNMP、LAMP环境,只需要简单修改一下就可以了。

2. 演示效果

2.1. 一级菜单

2.2. 二级菜单

2.3. 执行操作

3. 参考代码

[root@server ~]# vim multi_menu.sh
#!/bin/bash
#
function menu(){
cat << EOF
----------------------------------------------
|*******Please Enter Your Choice:[1-4]*******|
----------------------------------------------
* `echo -e "\033[35m 1)lamp install\033[0m"`
* `echo -e "\033[35m 2)lnmp install\033[0m"`
* `echo -e "\033[35m 3)quit\033[0m"`
* `echo -e "\033[35m 4)return main menu\033[0m"`
EOF
}

function lamp_menu(){
cat << EOF
----------------------------------------------
|*******Please Enter Your Choice:[1-4]*******|
----------------------------------------------
* `echo -e "\033[35m 1)http install\033[0m"`
* `echo -e "\033[35m 2)mysql install\033[0m"`
* `echo -e "\033[35m 3)php install\033[0m"`
* `echo -e "\033[35m 4)return main menu\033[0m"`
EOF
read -p "####please input second_lamp optios[1-4]: " num2
expr $num2 + 1 &>/dev/null #这里加1,判断输入的是不是整数。
if [ $? -ne 0 ]
then #如果不等于零,代表输入不是整数。
    echo "###########################"
    echo "Waing !!!,input error "
    echo "Please enter choose[1-4]:"
    echo "##########################"
    sleep 1
else
    if [ $num2 -gt 4 ]
    then
        echo "###########################"
        echo "Waing !!!,Out of range "
        echo "Please enter choose[1-4]:"
        echo "##########################"
        sleep 1
    fi
fi
case $num2 in
    1)
    # yum 安装httpd
    yum install httpd -y &> /dev/null
    if(($?==0))
    then
        echo "安装httpd成功"
    fi
    sleep 2
    lamp_menu
    ;;
    2)
    # yum 安装 MySQL...
     yum install mysql -y &> /dev/null
    if(($?==0))
    then
        echo "安装mysql成功"
    fi
    sleep 2
    lamp_menu
    ;;
    3)
    # yum 安装 PHP...
     yum install php -y &> /dev/null
    if(($?==0))
    then
        echo "安装php成功"
    fi
    sleep 2
    lamp_menu
    ;;
    4)
    clear
    menu
    ;;
    *)
    clear
    echo
        echo -e "\033[31mYour Enter the wrong,Please input again Choice:[1-4]\033[0m"
    lamp_menu
esac
}
function lnmp_menu(){
cat << EOF
----------------------------------------------
|*******Please Enter Your Choice:[1-4]*******|
----------------------------------------------
* `echo -e "\033[35m 1)nginx install\033[0m"`
* `echo -e "\033[35m 2)mysql install\033[0m"`
* `echo -e "\033[35m 3)php install\033[0m"`
* `echo -e "\033[35m 4)return main menu\033[0m"`
EOF
read -p "please input second_lnmp options[1-4]: " num3
expr $num3 + 1 &>/dev/null #这里加1,判断输入的是不是整数。
if [ $? -ne 0 ]
then #如果不等于零,代表输入不是整数。
    echo "###########################"
    echo "Waing !!!,input error "
    echo "Please enter choose[1-4]:"
    echo "##########################"
    sleep 1
else
    if [ $num3 -gt 4 ]
    then
        echo "###########################"
        echo "Waing !!!,Out of range "
        echo "Please enter choose[1-4]:"
        echo "##########################"
        sleep 1
    fi
fi
case $num3 in
    1)
    # yum 安装 Nginx...
     yum install nginx -y &> /dev/null
    if(($?==0))
    then
        echo "安装nginx成功"
    fi
    sleep 2
    lnmp_menu
    ;;
    2)
    # yum 安装 MySQL...
     yum install mysql -y &> /dev/null
    if(($?==0))
    then
        echo "安装mysql成功"
    fi
    sleep 2
    clear
    lnmp_menu
    ;;
    3)
    # yum 安装 PHP...
     yum install php -y &> /dev/null
    if(($?==0))
    then
        echo "安装php成功"
    fi
    sleep 2
    clear
    lnmp_menu
    ;;
    4)
    clear
    menu
    ;;
    *)
    clear
    echo
    echo -e "\033[31mYour Enter the wrong,Please input again Choice:[1-4]\033[0m"
    lnmp_menu
esac
}



clear
menu
while true
do
    read -p "##please Enter Your first_menu Choice:[1-4] " num1
    expr $num1 + 1 &>/dev/null #这里加1,判断输入的是不是整数。
    if [ $? -ne 0 ]
    then #如果不等于零,代表输入不是整数。
        echo "----------------------------"
        echo "| Waring!!! |"
        echo "|Please Enter Right Choice!|"
        echo "----------------------------"
        sleep 1
    elif [ $num1 -gt 4 ]
    then # 输入数字超范围
        echo "----------------------------"
        echo "| Waring!!! |"
        echo "| Out of range! |"
        echo "----------------------------"
        sleep 1
    else
        case $num1 in
            1)
            clear
            lamp_menu
            ;;
            2)
            clear
            lnmp_menu
            ;;
            3)
            clear
            break
            ;;
            4)
            clear
            menu
            ;;
            *)
            clear
            echo -e "\033[31mYour Enter a number Error,Please Enter again Choice:[1-4]: \033[0m"
            menu
        esac
    fi
done

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