Linux command format

A. Command prompt

　　[[Email protected]~]#

　　　　　which

Root: Is the currently logged on user

localhost: Host name

~: Current directory (home directory)

#: Super User prompt

$: Normal user prompt

Two. command format

　　command [options] [parameters]

Note: There are individual commands that do not conform to this format, and when there are multiple options, you can write the

Simplified option together with full option-a equals--all

Three. Query the contents of the directory:ls

　　ls [options] [file or directory]

Options:

-A: Show all files, including all files

-L: Query details

-D: View Directory properties

-H: User-friendly display file size

-I: Display inode

Linux command format