Linux instructions (Directory class operation instructions)

Pwd

Displays the current working directory

CD target directory such as Cd/boot/grub

Switch to a directory from the current directory

CD

Switch to the root directory

Cd..

Switch to the upper-level directory of the current directory

ls Displays the contents of the current directory

ls [options] directory or file

ls-l/etc/passwd Show details under ETC/PASSWD file

ls-ld/root Show details in current directory

-A show all files and contents

-l display in a long-format verbose manner

-h display in a user-friendly way (add a file or directory size unit)

-D displays information about the directory itself

-R recursive display of hierarchical directory structure information

mkdir creating an empty directory at the specified location

Option:-P Create a hierarchical directory structure

-V shows the process of creating a directory

Mkdir-p/1/2/3 Create a hierarchical directory at/below

mkdir movie Create a movie directory in the current directory

Mkdir/music Create a music directory under the root directory

Du

Disk usage of the statistics directory

Format: Du option directory Name

Option:-S to display in summary form

-A is displayed in detailed form

-h display in a humane way

Du-ah/music shows the disk space occupied by all files in this directory

Du-sh/music shows the disk space occupied by this directory (total)

Touch

Function: Create an empty file at the specified location

Example: Touch Qingshu creating an empty file in the current directory

Touch/tmp/daxiongmao creating a Daxionmao file in the/tmp directory

Date

Time to display the system

File

Function: View the type of the specified file

Example: FILE/ETC/PASSWD View the type of the file

Cp

Function: Copy a file or directory to the target directory

Format: cp[option] source file or directory destination directory

or cp[option] source file or directory destination file

Option:-R to recursively copy

-p copy preserves the properties of the source file or directory (such as timestamps)

Example:

Cp/tmp/daxiongmao/music (Copy the Daxiongmao file to the Music folder)

Cp/tmp/daxiongmao/music/temp (Copy the Daxiongmao file to the Music folder and rename it to TEMP)

Cp-r/tmp/*/music (copy all files under the TMP directory and each subset directory to the music folder)

Mv

Function: Move a file or directory to the target directory

Format: cp[option] source file or directory destination directory

or cp[option] source file or directory destination file

Option:-R to move in a recursive fashion

-p move to preserve the properties of the source file or directory (such as timestamp)

Rm

Function: Delete the specified file or directory

Option:-R Recursive Delete (for deleting directories)

-F Force Delete

-I interactive Delete

-V Show processing process

Example: Rm/tmp/daxiongmao

Rm-rf/tmp (forced to delete content in directory and directory, careful operation preferably first data backup)

　　　

Find

Function: Search for files by criteria

Option:-name Search by file name

-user Search by user name

-type Search by file type

-size Search by File size

Format: Find find range Lookup criteria

Example: Find/etc-name *.conf

Find/etc-size +1024k (greater than 1024k)

Absolute path

The feature always starts with/begins with/boot/grub relative to/root directory

Relative path

Relative to the current path

It is recommended to use relative directories if there is a parent-child relationship between the current directory and the target directory, and the absolute path is recommended instead

Linux instructions (Directory class operation instructions)