御用小本本

其實官方文件也是挺清楚的

https://docs.microsoft.com/zh-tw/dotnet/core/install/linux-ubuntu#2004-

總之直接下 install 會說找不到這套件

1.要先乖乖按照文件先執行以下命令

wget https://packages.microsoft.com/config/ubuntu/20.04/packages-microsoft-prod.deb -O packages-microsoft-prod.deb
sudo dpkg -i packages-microsoft-prod.deb

將 Microsoft 套件簽署金鑰新增至您的受信賴起點清單，並新增套件存放庫。

2. 安裝 .NET SDK

sudo apt-get update; \
  sudo apt-get install -y apt-transport-https && \
  sudo apt-get update && \
  sudo apt-get install -y dotnet-sdk-3.1

版本目前支援 2.1、3.1、5.0

3. 確認版本

dotnet --info

.NET Core SDK (reflecting any global.json):
Version:   3.1.408
Commit:    88530ea5c9

Runtime Environment:
OS Name:     ubuntu
OS Version:  20.04
OS Platform: Linux
RID:         ubuntu.20.04-x64
Base Path:   /usr/share/dotnet/sdk/3.1.408/

Host (useful for support):
 Version: 3.1.14
 Commit:  826c2c2f8f

.NET Core SDKs installed:
 3.1.408 [/usr/share/dotnet/sdk]

.NET Core runtimes installed:
 Microsoft.AspNetCore.App 3.1.14 [/usr/share/dotnet/shared/Microsoft.AspNetCore.App]
 Microsoft.NETCore.App 3.1.14 [/usr/share/dotnet/shared/Microsoft.NETCore.App]

To install additional .NET Core runtimes or SDKs:
 https://aka.ms/dotnet-download

4. 建置

dotnet publish -c:Release -o ./publish

5. Zip

apt-get install zip unzip

zip -r webplusdemo.zip ./publish/