```
开启32位库
sudo dpkg --add-architecture i386
```

```
添加官方仓库秘钥
wget -nc https://dl.winehq.org/wine-builds/winehq.key
sudo apt-key add winehq.key
```

```
添加仓库源
sudo apt-add-repository 'deb https://dl.winehq.org/wine-builds/ubuntu/ bionic main'
```

```
sudo 
sudo apt install --install-recommends winehq-stable
```

安装winehq

sudo apt-get install software-properties-common

安装ppa

upgrade时锁定软件包

shell

sample.txt文件第1行前面添加“hello”；实质就是插入内容到文件第1行

`sed -i '1 i hello' sample.txt`

sample.txt文件第1行后面添加“hello”；实质就是插入内容到文件第2行

`sed -i '1 a hello' sample.txt`

把"hello"插入到第2行

`sed -i '2i hello' sample.txt`

把"hello"插入到最后一行

`sed -i '$a hello' sample.txt`

shell脚本？