> For the complete documentation index, see [llms.txt](https://handbook.bsdcn.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://handbook.bsdcn.org/gai-shu.md).

# 概述

欢迎来到 FreeBSD！本手册涉及了 ***FreeBSD 15.0-RELEASE***、***FreeBSD 14.4-RELEASE*** 和 ***13.5-RELEASE*** 的安装和日常使用。本书是许多人持续工作的成果。有些部分可能已经过时。有志于帮助更新和扩充此文档的人可以发送电子邮件至 [FreeBSD 文档项目邮件列表](https://lists.freebsd.org/subscription/freebsd-doc)。

可以从 [FreeBSD 官网](https://www.freebsd.org/)得到本书的最新版本。还可以从 <https://docs.FreeBSD.org/doc/> 获取先前版本。本书可以从 [FreeBSD 下载服务器](https://download.freebsd.org/doc/)或众多[镜像站](/fu-lu-a.-huo-qu-freebsd/a.1.-jing-xiang-zhan.md)之一下载（提供了多种文件格式和压缩方式）。可以通过手册和其他文档的[搜索页面](https://www.freebsd.org/search/)进行搜索。


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# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://handbook.bsdcn.org/gai-shu.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.