Linux commands-HELP commands

Command--help

View the command's options related help information

Whereis command

If the path to the command is displayed as an external command, if the path of the command is not displayed, the shell internal command for example: LS--help

Help command

Get help documents for shell internal commands such as: Helps CD

Info command

-Enter the child help page (marked with an * number)

-U go to Upper page

-N Go to the next Help section

-P Enter the previous help section

-Q exit

The info command is more verbose than the Man command, which is equivalent to locating a command in a huge document that is composed of all the help in the system. (Like a Web page, you can go to the sub-help page, or you can go back to the previous layer, as well, you can also go to the previous or next Help section, browse the help of other commands)

Linux commands-HELP commands