man pages
"man" is an abbreviation of the English word manual, the Chinese word for manuals, help files, the CentOS 6.8 system, calls man man command will display the words "format online help," the.
man manual Chapter
standard man manual is divided into eight chapters, namely:
1 User Commands // user command
2 System Calls // system call
3 C Library Functions // C library calls
4 Devices and Special Files // device files and special files
5 File Formats and Conventions // configuration files and formats
6 Games et. Al. // game
7 Miscellaneous // 杂 项
8 System Administration tools and Deamons // Management Command
Note: This manual is mentioned in man's man manual refers to the standard, Linux distributions may add different versions of some of the content in their own man page.
man manual field descriptions
paragraph aid instructions in the manual:
NAME name and a brief description
SYNOPSIS Usage Format Description
• [] 可选内容
• <> 必选内容
• a|b 二选一
• { } 分组
• ... 同一内容可出现多次
DESCRIPTION 详细说明
OPTIONS 选项说明
EXAMPLES 示例
FILES 相关文件
AUTHOR 作者
COPYRIGHT 版本信息
REPORTING BUGS bug信息
SEE ALSO 其它帮助参考
Use the format
- man [section] the COMMAND
- View the man page
here to see the way, it refers to the following specific commands found in the pages of the order may be more than one line or even multiple pages, how to switch view in these pages, as well as some other shortcuts.
q Q ZZ 退出
g 1g 光标跳至文档首部
G 光标跳至文档尾部
e j 文档前进N行
y k 文档后退N行
f space 文档前进N页
b ^B 文档后退N页
/pattern n/N 向后查询、
?pattern 向前查询
&pattern 只显示匹配到的行
Alternatively, you can use the info manual, info COMMAND, to see
info free
After entering the info page, press the "h" to bring up the help document
Reproduced in: https: //www.jianshu.com/p/ae5b120d32d5