常用法:
man [section] name
其中section指明手冊中的哪一部分,若未指明,則從1開始一次查找,直到找到一個爲止。
重點留意:
1 --- 命令
2 --- 系統調用
3 --- 庫函數
The table below shows the section numbers of the manual followed by the
types of pages they contain.
1 Executable programs or shell commands
2 System calls (functions provided by the kernel)
3 Library calls (functions within program libraries)
4 Special files (usually found in /dev)
5 File formats and conventions eg /etc/passwd
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]
我使用的阿里雲centos 7服務器,使用man的時候發現只有section 1
進行man安裝
yum install -y man man-pages
注意:單獨安裝依然無效,無法查詢有些函數(eg: man 2 stat)