# 实战案例 - 操作系统

目前常用的 Linux 发行版主要包括 `Debian/Ubuntu` 系列和 `CentOS/Fedora` 系列。

前者以自带软件包版本较新而出名；后者则宣称运行更稳定一些。选择哪个操作系统取决于读者的具体需求。

使用 Docker，读者只需要一个命令就能快速获取一个 Linux 发行版镜像，这是以往包括各种虚拟化技术都难以实现的。这些镜像一般都很精简，但是可以支持完整 Linux 系统的大部分功能。

本章将介绍如何使用 Docker 安装和使用 `Busybox`、`Alphine`、`Debian/Ubuntu`、`CentOS/Fedora` 等操作系统。


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