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This article mainly shows you "how to use the man command in Linux". It is easy to understand and clear. I hope it can help you solve your doubts. Let me lead you to study and learn how to use the man command in Linux.

Linux common command man command is the help instruction under Linux. Through the man instruction, you can view the instruction help, configuration file help and programming help and other information in Linux.

Man View instruction help in Linux

Syntax man (options) (parameters) option-a: search all man help manuals;-f: equivalent to the whatis instruction that displays a short description of a given keyword;-P: use the paging program when specifying content;-M: specify the path to the man manual search. Parameter number: specify which man manual to search for help from

Keyword: specifies the keyword to search for help.

The number represents content 1: a command or execution file that the user can operate in the shell environment 2: functions and tools that can be called by the system kernel 3: some commonly used functions (function) and function libraries (library), mostly C function libraries (libc) 4: device file description, usually under / dev file 5: configuration file or some file format 6: game (games) 7: conventions and protocols, such as Linux file system, network protocol, etc. ASCII code et al. 8: management commands available to the system administrator 9: we enter man ls for an example of a file related to kernel, and it will display "LS (1)" in the upper left corner, where "LS" represents the name of the manual, and "(1)" means that the manual is in the first chapter. Similarly, if we enter man ifconfig, it will display "IFCONFIG (8)" in the upper left corner. You can also enter the command: "man [chapter number] manual name".

Man searches in the order of chapter numbers in the manual, such as:

Man sleep only displays the manual of the sleep command. If you want to view the library function sleep, type:

Man 3 sleep and above are all the contents of this article entitled "how to use man commands in Linux". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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