Linux notes: Directory processing command LS,MKDIR,CD,PWD,RMDIR,CP,MV,RM

Format of the Linux command:
commands [-options] [parameters]
Cases:
Ls-la/etc

Command: LS
Command path:/bin/ls
Features: Displaying directory files
Usage: ls [-ALDH] []
Parameters:
-A view all files, including hidden files. The hidden files for Linux are "." At the beginning, if we want to set a file as a hidden file, in the new file with "." Start.
-h Displays the file size in an easy-to-read manner, such as k,m,g, rather than in bytes.
-L displays detailed information. 7 details are: File type and permissions, number of files being called, owner, owning group, file size, file Last modified time, file name. About file types and permissions, a total of 10 characters, the 1th character represents the file type (-: file, D: directory, L: Soft link), the last 9 bits every 3 a group, respectively, represents the owner of the U, the group belongs to the G, other people o read R, write W, execute x. There is a corresponding letter indicating that there is a corresponding permission, if "-" indicates that the permission is not available.
-D Displays directory information (not files and directories under directory)
-I view the inode number of the file.

Command name: mkdir
Features: Creating folders
Command path:/bin/mkdir
Usage: mkdir [-p] Directory name [multiple directories can be created at the same time]
Parameters:
-P recursive creation of required multi-level catalogs

Command name: CD
Function: Switch directory
Command path: Shell built-in command
Usage: CD directory
Other: Used in Linux. Represents the current directory, using the. Represents the top-level directory of the current directory

Command name: pwd
Function: Display the current directory
Command path:/bin/pwd
Usage: pwd

Command name: rmdir
Function: Delete empty directory (only empty directory can be deleted)
Command path:/bin/rmdir
Usage: RmDir directory name

Command name: CP
Function: Copy files or directories, all sub-files and directories will be copied
Command path:/BIN/CP
Usage: CP [-RP] original file or directory [can copy multiple files or directories simultaneously] target directory (can be copied at the same time renamed)
Parameters:
-R Copy Directory
-P Reserved File attributes

Command name: MV
Function: Cut file, rename
Command path:/BIN/MV
Usage: MV original file or directory destination directory

Command name: RM
Features: Deleting files or directories
Command path:/BIN/RM
Usage: RM [-RF] File or directory
Parameters:
-R Delete Directory
-F Enforcement (ignoring queries)

Linux notes: Directory processing command LS,MKDIR,CD,PWD,RMDIR,CP,MV,RM