查看系统版本
cat /etc/debian_versioncat /etc/debian_versioncat /etc/debian_version
![图片[1]-Debian 12.5 升级至 Debian 12.8-软件开发技术分享](https://oss.drixn.com/2024/11/20241126160441659.png?imageView2/0/format/webp/q/75|watermark/1/image/aHR0cHM6Ly9pbWcuZHJpeG4uY29tLzIwMjMwNjI3LzcwYTFmZDQxZDllZWMucG5n/dissolve/30/gravity/SouthEast/dx/10/dy/10)
更新软件包索引
apt updateapt updateapt update
![图片[2]-Debian 12.5 升级至 Debian 12.8-软件开发技术分享](https://oss.drixn.com/2024/11/20241126155946725.jpg?imageView2/0/format/webp/q/75|watermark/1/image/aHR0cHM6Ly9pbWcuZHJpeG4uY29tLzIwMjMwNjI3LzcwYTFmZDQxZDllZWMucG5n/dissolve/30/gravity/SouthEast/dx/10/dy/10)
![图片[3]-Debian 12.5 升级至 Debian 12.8-软件开发技术分享](https://oss.drixn.com/2024/11/20241126160025888.png?imageView2/0/format/webp/q/75|watermark/1/image/aHR0cHM6Ly9pbWcuZHJpeG4uY29tLzIwMjMwNjI3LzcwYTFmZDQxZDllZWMucG5n/dissolve/30/gravity/SouthEast/dx/10/dy/10)
升级已安装的软件包
apt upgradeapt upgradeapt upgrade
![图片[4]-Debian 12.5 升级至 Debian 12.8-软件开发技术分享](https://oss.drixn.com/2024/11/20241126160119504.png?imageView2/0/format/webp/q/75|watermark/1/image/aHR0cHM6Ly9pbWcuZHJpeG4uY29tLzIwMjMwNjI3LzcwYTFmZDQxZDllZWMucG5n/dissolve/30/gravity/SouthEast/dx/10/dy/10)
清理无用安装包
apt autoremoveapt autoremoveapt autoremove
![图片[5]-Debian 12.5 升级至 Debian 12.8-软件开发技术分享](https://oss.drixn.com/2024/11/20241126160215723.png?imageView2/0/format/webp/q/75|watermark/1/image/aHR0cHM6Ly9pbWcuZHJpeG4uY29tLzIwMjMwNjI3LzcwYTFmZDQxZDllZWMucG5n/dissolve/30/gravity/SouthEast/dx/10/dy/10)
查看系统版本
![图片[6]-Debian 12.5 升级至 Debian 12.8-软件开发技术分享](https://oss.drixn.com/2024/11/20241126160340579.png?imageView2/0/format/webp/q/75|watermark/1/image/aHR0cHM6Ly9pbWcuZHJpeG4uY29tLzIwMjMwNjI3LzcwYTFmZDQxZDllZWMucG5n/dissolve/30/gravity/SouthEast/dx/10/dy/10)
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