What are the basic linux commands?

Aug 22, 2020 am 10:35 AM
linux

Linux basic commands are: 1. pwd is to display the current path; 2. rmdir is to delete an empty directory; 3. ls is to view directory or file information; 4. vi is a text editor; 5. cp is to copy ; 6. mv means moving; 7. rm means deleting files or directories; 8. find means searching for files.

What are the basic linux commands?

[Related learning recommendations: linux video tutorial]

The basic Linux commands are:

1.pwd: Display the current path

cd: Switch directory

Usage: cd

cd ../ switch to Parent directory

cd / Switch to the root directory

cd ~ (or only cd) Switch to the current user home directory (a folder named after the user name under home) /root directory

mkdir Create directory

mkdir directory name -p Create directory recursively

2.rmdir: Delete empty directory

Usage: rmdir directory name

Also available: rm -rf directory name

3.ls: View directory or file information

Main options:

-l List directory or file details. For example, permissions, modification time, etc.

-a List all files in the current directory, including hidden files (the ones with the beginning are hidden files)

4.vi Text Editor

Type i to enter the editing state

Exit editing and press the ESC key

Exit without saving: :q!

Save and exit: :wq

Enter / to enter the search

Enter: set nu to display the number of lines in each line

Press G on the keyboard to directly navigate to the end

5.cp Copy

Usage: cp [Option] File name or directory Target address

-R Copy directory And all directories and files in the directory

cp a.txt b.txt Copy file a and rename it to file b (directory name)

6.mv move

Usage: mv file name or directory target directory

mv a.txt ../ Move a file to the upper-level directory (move Move a file to another directory without renaming)

mv a.txt ../b.txt Move file a to the upper level and rename it to file b (move a file to another directory and rename it Name)

7.rm Delete file or directory

-f Forced deletion

-r Delete directory

Commonly used: rm -rf file or directory

8.find Find the file

Usage: find [path] [option]

Commonly used options are:

find . -name *.log Find the file ending with .log in the current directory

find / -name log Find the file named log in the root directory Directory

9.grep Filter

Find the character (string) in the specified file and print the line

Usage: grep string file name

grep band file Find the band string in the file file

10.cat Display the content of the text file

Usage: cat file name cat file name

11.head View the first few lines

Usage: head -n 5 File name

12.tail Write the file to the standard output starting from the specified point

tail -n 5 file name View the last few lines

tail -f error.log Keep refreshing and see the latest content

13.ps View process(Dynamic)

-ef Display all running processes and display the command to start the process

14.netstat View network status(net status abbreviation)

netstat -apn View all ports

an, arrange the output in a certain order

p, indicating which process is calling

15.| Pipe character (vertical bar, |\ on the shift keyboard in English input method mode)

Establish a pipeline between commands and transfer the output of the previous command As the input of the following command

Find the tomcat process through the command: ps -ef | grep tomcat

Find the process number occupying this port through the command: netstat -apn|grep 8080

16.echo prints file content or edits file content

Common options are:

-n output without line breaks

-e can use escape characters (\n carriage return, \t tab key)

Example:

echo "I am studying linux">>xujun.txt append to the end of the file Content

echo $? If the return value is 0, it means the last command was successful. If it is 1 to 255, it is a failure

echo -e “wo\tshi\tshei”> xujun.txt

17.touch creation A blank file, if the current directory has the same file, the timestamp of the file will be updated

-a Modify the access time

-m Modify the modify time You can understand these two parameters

18.uname Check the system

-m Check the operating system of the system

-r View the system kernel version

-a View the detailed system kernel version and system operating system

19.rz Upload

If there is no such command in the system, use yum install lrzsz to install

-y to overwrite

Enter rz directly to upload the file

20.sz download

If there is no such command in the system, use yum install lrzsz to install

-y to overwrite

sz -y test.txt

21.su Switch user

su root

22.history View command history

23.chmod permission grant command

-R recursively changes the permissions of all subdirectories and files in the directory

Number mode: r=4 w=2 x=1

chmod 777 lemon

24.tar Decompress and compress tar.gz

tar -czvf test.tar.gz test

Compress the test folder into test.tar.gz

tar -xzvf test.tar.gz

Compress test.tar .gz decompress to get the test folder

25.zip Decompress and compress zip

zip –r test.zip test

Compress the test folder into test.zip, you must use r to compress the file, otherwise an empty folder will be generated

unzip test.zip

Extract the test.zip folder

26. Turn off the firewall

Enable: service iptables start

Close: service iptables stop

27. View the file from end to end

tac

28.shutdown Shutdown

Permanently turn off the firewall

Turn on: chkconfig iptables on

Turn off: chkconfig iptables off

The above is the detailed content of What are the basic linux commands?. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Best Graphic Settings
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. How to Fix Audio if You Can't Hear Anyone
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
WWE 2K25: How To Unlock Everything In MyRise
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

How to solve permission issues when using python --version command in Linux terminal? How to solve permission issues when using python --version command in Linux terminal? Apr 02, 2025 am 06:36 AM

Using python in Linux terminal...

Four ways to implement multithreading in C language Four ways to implement multithreading in C language Apr 03, 2025 pm 03:00 PM

Multithreading in the language can greatly improve program efficiency. There are four main ways to implement multithreading in C language: Create independent processes: Create multiple independently running processes, each process has its own memory space. Pseudo-multithreading: Create multiple execution streams in a process that share the same memory space and execute alternately. Multi-threaded library: Use multi-threaded libraries such as pthreads to create and manage threads, providing rich thread operation functions. Coroutine: A lightweight multi-threaded implementation that divides tasks into small subtasks and executes them in turn.

How to open web.xml How to open web.xml Apr 03, 2025 am 06:51 AM

To open a web.xml file, you can use the following methods: Use a text editor (such as Notepad or TextEdit) to edit commands using an integrated development environment (such as Eclipse or NetBeans) (Windows: notepad web.xml; Mac/Linux: open -a TextEdit web.xml)

Can the Python interpreter be deleted in Linux system? Can the Python interpreter be deleted in Linux system? Apr 02, 2025 am 07:00 AM

Regarding the problem of removing the Python interpreter that comes with Linux systems, many Linux distributions will preinstall the Python interpreter when installed, and it does not use the package manager...

What is the Linux best used for? What is the Linux best used for? Apr 03, 2025 am 12:11 AM

Linux is best used as server management, embedded systems and desktop environments. 1) In server management, Linux is used to host websites, databases, and applications, providing stability and reliability. 2) In embedded systems, Linux is widely used in smart home and automotive electronic systems because of its flexibility and stability. 3) In the desktop environment, Linux provides rich applications and efficient performance.

How is Debian Hadoop compatibility How is Debian Hadoop compatibility Apr 02, 2025 am 08:42 AM

DebianLinux is known for its stability and security and is widely used in server, development and desktop environments. While there is currently a lack of official instructions on direct compatibility with Debian and Hadoop, this article will guide you on how to deploy Hadoop on your Debian system. Debian system requirements: Before starting Hadoop configuration, please make sure that your Debian system meets the minimum operating requirements of Hadoop, which includes installing the necessary Java Runtime Environment (JRE) and Hadoop packages. Hadoop deployment steps: Download and unzip Hadoop: Download the Hadoop version you need from the official ApacheHadoop website and solve it

Do I need to install an Oracle client when connecting to an Oracle database using Go? Do I need to install an Oracle client when connecting to an Oracle database using Go? Apr 02, 2025 pm 03:48 PM

Do I need to install an Oracle client when connecting to an Oracle database using Go? When developing in Go, connecting to Oracle databases is a common requirement...

Is Debian Strings compatible with multiple browsers Is Debian Strings compatible with multiple browsers Apr 02, 2025 am 08:30 AM

"DebianStrings" is not a standard term, and its specific meaning is still unclear. This article cannot directly comment on its browser compatibility. However, if "DebianStrings" refers to a web application running on a Debian system, its browser compatibility depends on the technical architecture of the application itself. Most modern web applications are committed to cross-browser compatibility. This relies on following web standards and using well-compatible front-end technologies (such as HTML, CSS, JavaScript) and back-end technologies (such as PHP, Python, Node.js, etc.). To ensure that the application is compatible with multiple browsers, developers often need to conduct cross-browser testing and use responsiveness

See all articles