为什么 apt-get 输出突然变成彩色的？

Question

我正想办法去买酒。我一直在做指示https://wiki.winehq.org/Ubuntu我sudo apt update看到“E：存储库'cdrom ...”带有红色“E”。就在几分钟前，sudo apt update它的输出是普通的白色，与其他输出相同。在“正常”和红色之间，我执行的唯一命令是下载未安装的命令sudo apt-get install -d somepackage和从 wine 页面下载的命令。

我想重新审视/重新检查我所做的事情，现在只有在输出history之后才再次变为全白色。cat /etc/apt/sources.list.d/winehq-jammy.sourcessudo apt update

知道发生了什么吗？是什么导致出现彩色输出？我对我使用的系统出现故障很警惕，我想找出原因。在网上搜索 apt 的彩色输出发现了一些涉及脚本等的解决方案，添加源和密钥如何导致瞬态颜色？

长话短说

找到的链接：

https://askubuntu.com/questions/445245/how-do-i-enable-fancy-apt-colours-and-progress-bars

设置终端输出格式以以红色显示 apt-get 升级错误

终端内容（实际上比我之前提到的更多命令，仍然不知道如何产生颜色）：

   35  sudo apt-get update
   36  sudo apt-get install -d somepackage
   37  eval $(apt-config shell CACHE Dir::Cache)
   38  eval $(apt-config shell ARCHIVES Dir::Cache::archives)
   39  # from man bash:
   40  # brace { after $ "serve to protect the variable to be expanded from characters immediately following it which could be interpreted as part of the name."
   41  debs_cache_folder=/${CACHE}/${ARCHIVES}
   42  echo $debs_cache_folder
   43  ls `echo $debs_cache_folder`
   44  ls `echo $debs_cache_folder` | wc
   45  sudo apt-get clean
... same  install -d  / ls wc / clean for several other packages 
   54  sudo dpkg --add-architecture i386
   55  sudo mkdir -pm755 /etc/apt/keyrings
   56  sudo wget -O /etc/apt/keyrings/winehq-archive.key https://dl.winehq.org/wine-builds/winehq.key
   57  sudo wget -NP /etc/apt/sources.list.d/ https://dl.winehq.org/wine-builds/ubuntu/dists/jammy/winehq-jammy.sources
   58  sudo apt update
   59  history
~/Downloads$ cat /etc/apt/sources.list.d/
cat: /etc/apt/sources.list.d/: Is a directory
~/Downloads$ cat /etc/apt/sources.list.d/
official-package-repositories.list  winehq-jammy.sources                
~/Downloads$ cat /etc/apt/sources.list.d/winehq-jammy.sources 
Types: deb
URIs: https://dl.winehq.org/wine-builds/ubuntu
Suites: jammy
Components: main
Architectures: amd64 i386
Signed-By: /etc/apt/keyrings/winehq-archive.key