linux-Common commands (1) directory, file processing commands

Directory processing command: LS

Command name: LS

Command English original meaning:list

Command location:/bin/ls

Execute Permissions: All Users

Function Description: Display directory file

Syntax: LS option [-ald][file or directory]

-a displays all files, including hidden files

-L Detailed information display

-D View Directory properties

-rw-r--r--

-File type (-file d directory l soft link file)

rw-r--r--

U g o

U owner G-owned group O other person

R Read W write X Execute

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Directory Processing command: mkdir

Command name: mkdir

Command English original:make directories

Command location:/bin/mkdir

Execute Permissions: All Users

Function Description: Create a new directory-P recursive creation

Syntax: mkdir-p[directory name]

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Directory Processing commands: CD

Command name: CD

Command English original meaning:change directory

Command path: Shell built-in commands

Execute Permissions: All Users

Function Description: Switch directory

Syntax: CD [catalog]

Example: $ cd/usr/lib Switch to the specified directory

$ CD: Go back to the top level directory

$ cd/switch to the root directory

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Directory processing command: PWD

Command name: pwd

Command English original meaning:print working directory

Command location:/bin/pwd

Execute Permissions: All Users

Function Description: Displays the current directory

Syntax: pwd

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Directory Processing command: rmdir

Command name: rmdir

Command English original meaning:remove emPty directories

Command location:/bin/rmdir

Execute Permissions: All Users

Function Description: Delete empty directory

Syntax: rmdir[directory name]

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Directory processing command: CP

Command name: CP

Command English original:copy

Command location:/BIN/CP

Execute Permissions: All Users

Function Description: Copy files or directories

Syntax: cp-rp[original file or directory [target directory]

-R Copy Directory

-P Reserved File attributes

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Directory processing commands: MV

Command name: MV

Command English original meaning:movE

Command location:/BIN/MV

Execute Permissions: All Users

Function Description: Cut file, rename

Syntax: MV [Original file or directory] [target directory]

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Directory Processing Commands: RM

Command name: RM

Command English original meaning:remove

Command location:/BIN/RM

Execute Permissions: All Users

Function Description: Delete file

Syntax: rm-fr [file or directory]

-R Delete Directory

-F Force Execution

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file processing commands: Touch

Command name: Touch

Command location:/bin/touch

Execute Permissions: All Users

Function Description: Create an empty file

Syntax: touch [filename]

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file processing commands: Cat

Command name: Cat

Command location:/bin/cat

Execute Permissions: All Users

Function Description: Display file contents

Syntax: cat [filename]

-N Display Line number

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file processing command: TAC

Command name: TAC

Command location:/bin/tac

Execute Permissions: All Users

Function Description: Display file contents (reverse list)

Syntax: cat [filename]

-N Display Line number

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file processing command: more

Command name: more

Command location:/bin/more

Execute Permissions: All Users

Function Description: Page shows the contents of the file

Syntax: more [filename]

(space) or F page

Carriage return line break

Q or Q exit

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file processing command: Less

Command name: more

Command location:/usr/bin/less

Execute Permissions: All Users

Function Description: page displays the contents of the file (can page up)

Syntax: less [filename]

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File Processing command: Head

Command name: Head

Command location:/usr/bin/head

Execute Permissions: All Users

Function Description: Displays the first few lines of the file

-n Specifies the number of rows

Syntax: head [filename]

Example: $ head-n 20/etc/services

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File Processing command: Tail

Command name: Tail

Command location:/usr/bin/tail

Execute Permissions: All Users

Function Description: Displays the following lines of the file

-n Specifies the number of rows

-F Dynamic display of file end content

Syntax: tail [file name]

Example: $ tail-n 20/etc/services

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File Processing command: LN

Command name: LN

Command English original meaning: link

Command location:/BIN/LN

Execute Permissions: All Users

Function Description: Generate link file

Syntax: ln-s[original file [target file]

-S Create soft links

linux-Common commands (1) directory, file processing commands