# Page Not Found

The URL `unix-tong-hen-zhe-shou-ce/di-yi-bu-fen-yong-hu-you-hao/unix-shi-jie-shang-di-yi-kuan-ji-suan-ji-bing-du` does not exist. This page may have been moved, renamed, or deleted.

## Suggested Pages

You may be looking for one of the following:
- [15.1 本地化环境变量](https://book.bsdcn.org/di-15-zhang-ben-di-hua-yu-shu-ru-fa/di-15.1-jie-ben-di-hua-huan-jing-bian-liang.md)
- [17.4 权限提升工具](https://book.bsdcn.org/di-17-zhang-yong-hu-zhang-hu-yu-quan-xian/di-17.4-jie-quan-xian-ti-sheng-gong-ju.md)
- [8.6 使用 DVD 安装软件](https://book.bsdcn.org/di-8-zhang-ruan-jian-guan-li/di-8.6-jie-shi-yong-dvd-an-zhuang-ruan-jian.md)
- [35.3 网络文件系统（NFS）](https://book.bsdcn.org/di-35-zhang-fu-wu-qi/di-35.3-jie-wang-luo-wen-jian-xi-tong-nfs.md)
- [8.4 使用 Ports 以源代码方式安装软件](https://book.bsdcn.org/di-8-zhang-ruan-jian-guan-li/di-8.4-jie-shi-yong-ports-yi-yuan-dai-ma-fang-shi-an-zhuang-ruan-jian.md)

## How to find the correct page

If the exact page cannot be found, you can still retrieve the information using the documentation query interface.

### Option 1 — Ask a question (recommended)

Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters:

```
GET https://book.bsdcn.org/di-15-zhang-ben-di-hua-yu-shu-ru-fa/di-15.1-jie-ben-di-hua-huan-jing-bian-liang.md?ask=<question>&goal=<user_goal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

### Option 2 — Browse the documentation index

Full index: https://book.bsdcn.org/sitemap.md

Use this to discover valid page paths or navigate the documentation structure.

### Option 3 — Retrieve the full documentation corpus

Full export: https://book.bsdcn.org/llms-full.txt

Use this to access all content at once and perform your own parsing or retrieval. It will be more expensive.

## Tips for requesting documentation

Prefer `.md` URLs for structured content, append `.md` to URLs (e.g., `/di-15-zhang-ben-di-hua-yu-shu-ru-fa/di-15.1-jie-ben-di-hua-huan-jing-bian-liang.md`).

You may also use `Accept: text/markdown` header for content negotiation.