【Linux_Shell 脚本编程学习笔记二、打印菜单】

# 打印一个环境安装的脚本
menu(){
    cat <<END
        1.[install lamp]
        2.[install lnmp]
        3.[exit]
        please input the num you want
END
}
# 执行打印菜单
menu

# 读入一个执行的编号
read num
[ "$num" = "1" ] &&{
    echo "start install lamp."
    # 检查安装的脚本是否有执行权限
    [ -x /root/Desktop/workspace/shell/Demo01/script/lamp.sh ] || {
        # 如果没有执行权限
        echo "You don't have execute permission"
        exit 2
    }
    # 如果有执行权限则执行
    /root/Desktop/workspace/shell/Demo01/script/lamp.sh
    exit 0
}

[ "$num" = "2" ] && {

    echo "执行安装lnmp 的业务逻辑"
    exit 0
}

[ "$num" = "3" ]&& {

    echo "退出安装"
    exit 0
}