split -l 100000 -d access.log part/access_ --verbose # 按行切割
split -b 100m access.log -d part/access_ --verbose # 按字节大小切割

cat part/access_* > access.log  # 合并
cat part.mp4 >> main.mp4        # 追加 part.mp4 到 main.mp4 末尾
bash -c "cat part.mp4 >> main.mp4" >> /dev/null # 静默执行

let wm = {
    startDate: Date.now(),
    remove: () => {
        try {
            document.querySelectorAll('.copyrightInfo-div').forEach(c => {
                c.style.transform = "translateY(9999px)"
            })

            document.querySelectorAll('div').forEach(node => {
                if (node.innerHTML.trim().startsWith("正在试用功能——")) {

# 配置参数（开始）===

ymd=$(date +%Y%m%d)
echo "日期：$ymd"
echo
keepday=5
echo "保留最近天数：$keepday"
echo
dirsync="/package/autosync/sync"
echo "同步目录：$dirsync"

# 配置参数（开始）===

ymd=$(date +%Y%m%d)
echo "日期：$ymd"
echo
keepday=5
echo "保留最近天数：$keepday"
echo
dirsync=/package/autosync/sync
echo "同步目录：$dirsync"

cat .git/config  # note <github-uri>
rm -rf .git
git init
git branch -M main # 修改分支，可设置默认分支为 main：  git config --global init.defaultBranch main
git add .
git commit -m "Initial commit"
git remote add origin git@github.com:netnr/proxy.git # 改成自己对应的仓库
git push -u --force origin main

# 设置用户名、邮箱
git config --global user.name "netnr"
git config --global user.email "netnr@netnr.com"

# 查看
cd ~/.ssh && ls

# 生成密钥（ED25519 更小更快更安全，需要 OpenSSH 6.5 以上，推荐），密钥均为 256 位
ssh-keygen -t ed25519 -C "netnr"

# 生成私钥，4 位以上的密码
# genra	生成RSA私钥；-des3	des3算法；-out server.key 生成的私钥文件名；2048 私钥长度
openssl genrsa -des3 -out server.pass.key 2048

# 去除密码
openssl rsa -in server.pass.key -out server.key

# 生成 CSR (证书签名请求)
# req 生成证书签名请求；-new 新生成；-key 私钥文件；-out 生成的CSR文件；-subj 生成CSR证书的参数
openssl req -new -key server.key -out server.csr -subj "/C=CN/ST=Beijing/L=Beijing/O=dev/OU=dev/CN=dev.cn"

# 脚本安装

wget https://dot.net/v1/dotnet-install.ps1 # PowerShell (Windows)

wget https://dot.net/v1/dotnet-install.sh # Bash (Linux/macOS)

./dotnet-install.sh # 默认安装 LTS
./dotnet-install.sh -c Current # 当前最新
./dotnet-install.sh -c 5.0 # 指定版本

docker pull mcr.microsoft.com/azure-sql-edge:latest # 下载镜像

# 开发版
docker run --cap-add SYS_PTRACE -e 'ACCEPT_EULA=1' -e 'MSSQL_SA_PASSWORD=yourStrong(!)Password' -p 1433:1433 --name sqledge -d mcr.microsoft.com/azure-sql-edge
# 高级版
docker run --cap-add SYS_PTRACE -e 'ACCEPT_EULA=1' -e 'MSSQL_SA_PASSWORD=yourStrong(!)Password' -e 'MSSQL_PID=Premium' -p 1433:1433 --name sqledge -d mcr.microsoft.com/azure-sql-edge

# 配置
https://learn.microsoft.com/en-us/azure/azure-sql-edge/configure

# 安装
yum install iptables
yum update iptables 
yum install iptables-services
service iptables status

iptables -L # 列表
iptables -nL --line

iptables -A INPUT -p tcp --dport ssh -j ACCEPT # 开启 SSH

apt install ufw # 安装

ufw disable # 禁用

apt-get remove ufw # 卸载
apt-get purge ufw # 清除

ufw status # 查看

ufw enable # 启用

### Apache 安装及使用

https://blog.51cto.com/itwish/2160492

### 反向代理 https

https://docs.rapidminer.com/latest/legacy/configure/security/reverse-proxy.html

```
<VirtualHost *:80>

# docker 安装 12.8
docker run --restart=always --name=pg \
    -e POSTGRES_PASSWORD=<MySecretPassword> \
    -e PGDATA=/var/lib/postgresql/data/pgdata \
    -v /package/pgdb:/var/lib/postgresql/data \
    -p 5432:5432 -d postgres:12.8
    
# help
https://hub.docker.com/_/postgres

npm install -g browserify   # 安装      yarn global add browserify

browserify index.js -o bundle.js    # 捆绑打包

# help
http://browserify.org/

dotnet publish  # 跨平台环境依赖版
dotnet publish ~/projects/app1/app1.csproj  # 发布指定项目
dotnet publish -c Release -r linux-x64  # 发布指定平台 linux-64 独立版
dotnet publish -c Release -r win-x64 --self-contained false # 发布指定平台环境依赖版

# 参数说明
# -p:PublishReadyToRun=true         缩短应用程序的启动时间，但代价是增加应用程序的大小
# -p:PublishSingleFile=true         打包到特定于平台的单个文件可执行文件中
# -p:PublishTrimmed=true            剪裁未使用的库以减小应用的部署大小
# --self-contained [true|false]     运行时随应用程序一同发布，默认为 true

Option Explicit  
ValidationMode = True  
InteractiveMode = im_Batch  
Dim mdl ' 当前模型  
' 获取当前模型  
Set mdl = ActiveModel  
If (mdl Is Nothing) Then  
   MsgBox "没有打开一个模型" 
ElseIf Not mdl.IsKindOf(PdPDM.cls_Model) Then  
   MsgBox "当前模型不是一个PDM"

crontab -l # 列表
crontab -e # 编辑

vi /etc/crontab # 编辑
crontab /etc/crontab # 生效

# 注意末尾保留一空行

crontab -h # 帮助

# 生成密钥
ssh-keygen -t ed25519 -C "netnr"

# 服务器端配置公钥，拷贝客户端公钥 id_ed25519.pub 内容写入服务器
vi ~/.ssh/authorized_keys

# 其它配置（以上配置完成已经可以了）
# 文件权限要求
chmod 600 authorized_keys
chmod 700 ~/.ssh

# 全局变量
vi /etc/profile # 编辑
PATH=$PATH:/package/app/node/bin
export PATH USER LOGNAME MAIL HOSTNAME HISTSIZE HISTCONTROL # 在该行前面加
source /etc/profile # 生效

# 局部变量
vi ~/.bash_profile # 编辑
alias nodejs=/package/app/node/bin
source ~/.bash_profile # 生效

- 下载地址：https://dev.mysql.com/downloads/mysql
- 解压包，放置一个目录下（不含中文或空格的路径）
- 在 **bin** 同级目录创建 **my.ini** 文件和 **data** 文件夹
- my.ini 文件内容
```
[mysqld]
# 设置 3306 端口
port=3306
# 设置 mysql 的安装目录
basedir=E:\\mysql-8.0.22-winx64

# 按用户导出
expdp system/oracle@orcl schemas=$user dumpfile=$dbname.dmp logfile=$dbname.log directory=DATA_PUMP_DIR
# 按表名导出
expdp system/oracle@orcl tables=($TABLE1,$TABLE2) dumpfile=$dbname.dmp logfile=$dbname.log directory=DATA_PUMP_DIR
# 按用户导入（表覆盖）
impdp system/oracle@orcl schemas=$user dumpfile=$dbname.dmp logfile=$dbname.log directory=DATA_PUMP_DIR table_exists_action=REPLACE
# 按用户导入（转换空间）
impdp system/oracle@orcl schemas=$user TRANSFORM=segment_attributes:n dumpfile=$dbname.dmp logfile=$dbname.log directory=DATA_PUMP_DIR table_exists_action=REPLACE

# 导入导出包权限设置

:: 显示监听的IP列表
netsh http show iplisten

:: 添加监听IP
netsh http add iplisten ipaddress=127.0.0.1

:: 删除监听IP
netsh http delete iplisten 127.0.0.1

@echo off
title .NET Framework Register IIS
color 5f

echo.---------- .NET Framework v2 Register IIS
echo.

%windir%\Microsoft.NET\Framework\v2.0.50727\aspnet_regiis.exe -i
%windir%\Microsoft.NET\Framework64\v2.0.50727\aspnet_regiis.exe -i

@echo off
title Install IIS
color 5f

echo.---------- Install IIS about 3-5 Minutes
echo.

dism /Online /Enable-Feature /FeatureName:IIS-ApplicationDevelopment	/FeatureName:IIS-ASP	/FeatureName:IIS-ASPNET    /FeatureName:IIS-BasicAuthentication    /FeatureName:IIS-CGI    /FeatureName:IIS-ClientCertificateMappingAuthentication    /FeatureName:IIS-CommonHttpFeatures    /FeatureName:IIS-CustomLogging    /FeatureName:IIS-DefaultDocument    /FeatureName:IIS-DigestAuthentication   /FeatureName:IIS-DirectoryBrowsing   /FeatureName:IIS-FTPExtensibility   /FeatureName:IIS-FTPServer   /FeatureName:IIS-FTPSvc   /FeatureName:IIS-HealthAndDiagnostics   /FeatureName:IIS-HostableWebCore   /FeatureName:IIS-HttpCompressionDynamic   /FeatureName:IIS-HttpCompressionStatic   /FeatureName:IIS-HttpErrors   /FeatureName:IIS-HttpLogging   /FeatureName:IIS-HttpRedirect   /FeatureName:IIS-HttpTracing   /FeatureName:IIS-IIS6ManagementCompatibility   /FeatureName:IIS-IISCertificateMappingAuthentication   /FeatureName:IIS-IPSecurity   /FeatureName:IIS-ISAPIExtensions   /FeatureName:IIS-ISAPIFilter   /FeatureName:IIS-LegacyScripts   /FeatureName:IIS-LegacySnapIn   /FeatureName:IIS-LoggingLibraries   /FeatureName:IIS-ManagementConsole   /FeatureName:IIS-ManagementScriptingTools   /FeatureName:IIS-ManagementService   /FeatureName:IIS-Metabase   /FeatureName:IIS-NetFxExtensibility   /FeatureName:IIS-ODBCLogging   /FeatureName:IIS-Performance   /FeatureName:IIS-RequestFiltering   /FeatureName:IIS-RequestMonitor   /FeatureName:IIS-Security   /FeatureName:IIS-ServerSideIncludes   /FeatureName:IIS-StaticContent   /FeatureName:IIS-URLAuthorization   /FeatureName:IIS-WebDAV   /FeatureName:IIS-WebServer   /FeatureName:IIS-WebServerManagementTools   /FeatureName:IIS-WebServerRole   /FeatureName:IIS-WindowsAuthentication   /FeatureName:IIS-WMICompatibility   /FeatureName:WAS-ConfigurationAPI   /FeatureName:WAS-NetFxEnvironment   /FeatureName:WAS-ProcessModel   /FeatureName:WAS-WindowsActivationService
dism /online /enable-feature /featurename:IIS-ISAPIFilter
dism /online /enable-feature /featurename:IIS-ISAPIExtensions