Man Manual Essentials Record

Record some key points for future inquiries ...

1, people with Linux know the man Manual, similar to the Help document, very useful. Some uses of the man manual are documented below. The argument behind the man manual can be a command, function, or file name.

2. The man manual has several sections (section), which are distinguished by numbers:

(1) User order;

(2) system call;

(3) C function library;

(4) Equipment and special documents;

(5) Document format and practice;

(6) games;

(7) Miscellaneous;

(8) System Management tools and Daemons

3. Some optional options for man:

-A: The man manual showing all matching parameters;
-D: Display debugging information;
-K: Searches for the specified string in a brief description of the command.
-K: To find the specified string in all manuals, it is best to specify section with-S
4, man will try to save the formatted man manual, in order to save the next call to format the time, so there is a cache page, the location is specified in the man.conf
5, if the lang environment variable set (take ZH_CN as an example), then decided the man first find the location:/USR/MAN/ZH_CN. If not, look for it from the original position.
6. If you want to see plain text, there are no formats: Man foo | Col-b > File.txt
7, man manual configuration file:/usr/lib64/man.conf. Man.conf contains man manual query path: manpath;manpath_map: Map command and query path; there are some default options

Man Manual Essentials Record