22 lines
823 B
Markdown
22 lines
823 B
Markdown
|
# Man 使用帮助
|
|||
|
|
|
|||
|
|
Linux man 中的 man 就是 manual 的缩写，用来查看系统中自带的各种参考手册，但是手册页分为好几个部分，如下所示：
|
|||
|
|
|
|||
|
|
1. Executable programs or shell commands（用户命令帮助）
|
|||
|
|
2. System calls (系统调用帮助)
|
|||
|
|
3. Library calls (库函数调用帮助)
|
|||
|
|
4. Special files (usually found in /dev)
|
|||
|
|
5. File formats and conventions eg /etc/passwd（配置文件帮助）
|
|||
|
|
6. Games
|
|||
|
|
7. Miscellaneous (including macro packages and conventions), e.g. man(7), groff(7)
|
|||
|
|
8. System administration commands (usually only for root)
|
|||
|
|
9. Kernel routines [Non standard]
|
|||
|
|
|
|||
|
|
在 shell 中输入:
|
|||
|
|
|
|||
|
|
```bash
|
|||
|
|
man <num> <cmd/function name>
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
即可以查到相关的命令和函数。若不加数字，那 Linux man 命令默认从数字较小的手册中寻找相关命令和函数。
|