Basic commands for Linux file and directory management

Linux basic commands for file and directory management

ls command

Function: Displays the contents of the target list or directory

Syntax: ls[option [directory or file]

-A: Displays all subdirectories and files in the specified directory, including hidden files

-L: Show file details

-D: Show directory

Example:ls-dl

650) this.width=650; "src=" Https://s1.51cto.com/oss/201711/19/536c4bf40f6118747bc52159515e7a03.png "style=" float: none; "title=" Image 1.png "alt=" 536c4bf40f6118747bc52159515e7a03.png "/>

CD command

Function: Used to switch work

Syntax: CD [directory]

Cd/etc

CD (return to current user's home)

Cd.. (Return to the previous level of the directory)

Example: cd/etc/123/

650) this.width=650; "src=" Https://s1.51cto.com/oss/201711/19/0213db2e036fe71e914984a285f4d442.png "style=" float: none; "title=" Image 2.png "alt=" 0213db2e036fe71e914984a285f4d442.png "/>

PWD Command

function: displays the path of the current working directory

syntax:pwd

Example:pwd

650) this.width=650; "src=" Https://s1.51cto.com/oss/201711/19/af5b7a1da2e13a2dddae50c373f38a66.png "style=" float: none; "title=" Image 3.png "alt=" Af5b7a1da2e13a2dddae50c373f38a66.png "/>

mkdir Command

Role: Create an empty directory

Syntax: mkdir [options] dirname

-M Sets directory permissions while creating a new directory, with default permissions of 755

-P: When creating a new directory, if the top-level directory to which you want to create the directory is not currently established, the upper -level directory is created

Example: Mkdir-p/p1/p2/

650) this.width=650; "src=" Https://s5.51cto.com/oss/201711/19/0894482eb7b9edf487500d05fbf90540.png "style=" float: none; "title=" Image 4.png "alt=" 0894482eb7b9edf487500d05fbf90540.png "/>

Touch command

Action: Modifies the creation date of a file or creates an empty file with the current system date

Syntax: Touch file1 file2 ...

Example: Touch a.txt

650) this.width=650; "src=" Https://s5.51cto.com/oss/201711/19/7b527ca33951812835e14a373867199a.png "style=" float: none; "title=" Image 5.png "alt=" 7b527ca33951812835e14a373867199a.png "/>

CP command

Role: Copy one or more source files to the target directory

Syntax: CP [option] source file or directory destination file or directory

-F: Overwrite if target file already exists without prompting

-I: Ask users before overwriting existing files

-P: Copy the modification time and access rights to the new file.

-R: If the source file is a directory, all subdirectories and files in that directory will be copied recursively, and the destination file must be a directory name

Example: CP a.txt/etc/123/b.txt

650) this.width=650; "src=" Https://s3.51cto.com/oss/201711/19/699f92db17bedb46963067775e53ea8f.png "style=" float: none; "title=" Image 6.png "alt=" 699f92db17bedb46963067775e53ea8f.png "/>

MV Command

Role: Renaming files or moving files from one directory to another

Syntax: MV [options] source file or directory destination file or directory

-F: Overwrite if target file already exists without prompting

-I: The opposite of the f option

Example:mv A.txt x.txt

650) this.width=650; "src=" Https://s4.51cto.com/oss/201711/19/ae4602ccdd2958408479e2dfe778c4d1.png "style=" float: none; "title=" Image 7.png "alt=" Ae4602ccdd2958408479e2dfe778c4d1.png "/>

RM command

Function: Delete one or more files or directories in a directory

syntax:rm [options] File

-F do not need to be confirmed to delete more than one file , you can bring a wildcard

-R removes all directories and subdirectories listed in the parameter recursively

-I for interactive delete

Example:rm-rf/etc/123/b.txt

650) this.width=650; "src=" Https://s3.51cto.com/oss/201711/19/746250448986a15843265d9e6829b859.png "style=" float: none; "title=" Image 8.png "alt=" 746250448986a15843265d9e6829b859.png "/>

Cat Command

function: Displays the contents of a file on the screen, or connects two or more files.

syntax:cat [ option ]< file name >

Example: Cat/etc/wj.txt

650) this.width=650; "src=" Https://s4.51cto.com/oss/201711/19/15adb4625d3e5b78d9dc93a51279c160.png "style=" float: none; "title=" Image 9.png "alt=" 15adb4625d3e5b78d9dc93a51279c160.png "/>

which command

Action: Displays the location of the application files

syntax:which [ file name ]

Example:which touch

650) this.width=650; "src=" Https://s4.51cto.com/oss/201711/19/6d2adc0170f1834e6d5135a8c10f00a1.png "style=" float: none; "title=" Image 10.png "alt=" 6d2adc0170f1834e6d5135a8c10f00a1.png "/>

Whereis Command

Function: Displays help information for a specified command or file

syntax:whereis [ file name ]

Example:whereis mkdir

650) this.width=650; "src=" Https://s1.51cto.com/oss/201711/19/795220318863469143d1b25b79f98069.png "style=" float: none; "title=" Image 11.png "alt=" 795220318863469143d1b25b79f98069.png "/>

grep command

Function: Finds the line that matches the specified keyword from a file and sends it to standard output.

Syntax: grep [options ] match pattern [ file ]

Example: Rpm-qa | grep vim

650) this.width=650; "src=" Https://s1.51cto.com/oss/201711/19/8ad2e77ca29cc47abc7b4e7241e68ed1.png "style=" float: none; "title=" Image 12.png "alt=" 8ad2e77ca29cc47abc7b4e7241e68ed1.png "/>

gzip command

role: File compression / decompression, does not support the compression of the directory, if the directory compression, the first package and then compress.

syntax:gzip [ options ] [ file name ]

-D: Unzip

-N: Specifies a compression ratio of 1-9, and does not specify a default of 6

-C: Writes the output to the standard output and retains the original file

Example:gzip a.txt(compression)

650) this.width=650; "src=" Https://s1.51cto.com/oss/201711/19/a7dfd3d820abc49d927b8e7af679ff04.png "style=" float: none; "title=" Image 13.png "alt=" A7dfd3d820abc49d927b8e7af679ff04.png "/>

Gzip-d A.txt.gz9 (Unzip)

650) this.width=650; "src=" Https://s1.51cto.com/oss/201711/19/3dad1ab0b5b9f03e079234628facd53b.png "style=" float: none; "title=" Image 14.png "alt=" 3dad1ab0b5b9f03e079234628facd53b.png "/>

This article is from the "New Network Society Blog" blog, please be sure to keep this source http://xwxhvip.blog.51cto.com/13020757/1983303

Basic commands for Linux file and directory management