> For the complete documentation index, see [llms.txt](https://book.bsdcn.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://book.bsdcn.org/man/man8/intro.8.md).

# intro.8

`intro` — 系统维护过程与命令简介

## 名称

`intro`

## 描述

本节包含与系统运行和维护相关的信息。

其中描述了用于创建新文件系统（newfs(8)）、校验文件系统完整性（fsck(8)）、控制磁盘使用量（edquota(8)）、维护系统备份（dump(8)），以及在磁盘意外损坏时恢复文件（restore(8)）的命令。诸如 [inetd(8)](/man/man8/inetd.8.md) 之类的网络相关服务也有介绍。

所有命令都会设置退出状态。可以测试其值来判断命令是否正常完成。除非另有说明（这种情况很少见），值 0 表示命令成功完成，而值大于 0 则表示出错。一些命令会使用 [sysexits(3)](https://github.com/FreeBSD-Ask/freebsd-man-sc/blob/main/man3/sysexits.3.md) 中定义的错误代码来描述失败的性质，或者将状态设置为大于 0 的任意值（通常为 1），但许多此类值并未在手册中说明。

本节中有不少页面介绍了一般性的系统管理主题。

例如，[boot(8)](broken://pages/rVZ4tbdOlQCcecB5GROc) 手册页描述了系统引导过程，[diskless(8)](https://github.com/FreeBSD-Ask/freebsd-man-sc/blob/main/man8/diskless.8.md) 手册页描述了如何通过网络引导系统。若要了解如何解读系统崩溃转储，应查阅 [crash(8)](/man/man8/crash.8.md) 手册页。

## 历史

`intro` 节手册页出现于 4.2BSD。


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