Common Linux Online Help commands

Common Linux Online Help commands-general Linux technology-Linux technology and application information. For more information, see the following. Because I often don't know the specific usage of various LInux commands, I often read books. The following is a common Linux Online Help Command for future query!

1. man command

You should be familiar with it. commands appear in a bin folder !. Looking at the corresponding folder or file name, you can use the man command to see the specific usage and parameters used

Example: man clear

2. info command

The info document is a help information provided by the Linux System in another format. It is more interactive than the manual. You can use the info command to view the help document in the Texinfo format.

Info files are generally stored in the/usr/share/info directory.

You can also use the pinfo command to view the document. The pinfo command adopts the Lynx Browser style, making it easier to view the document.

3. help Command

The help Command is very familiar to everyone, so I will not talk about it!

For example:

Format 1: help cd

Format 2: cd -- help

Other commands:

1. whereis command

Command for querying the file storage location

2. whatis command

Provide more concise help information

Note: Create a whatis database before using the whatis command. This database can be created only by the system administrator!

The command is as follows:

Makewhatis

3. apropos command

Search in the whatis database to find and display all data that contains the entered string!