Operation and Maintenance
Linux Operation and Maintenance
Detailed explanation of the use of sort command in Linux
Detailed explanation of the use of sort command in Linux
sort is a very commonly used command in Linux. It treats each line of the file as a unit and compares it with each other. The comparison principle is from the first character backward and press ASCII in sequence. The code values are compared, and finally they are output in ascending order.
There is a file test here, the content is:
8723 23423 321324 213432 23 234 123 231 234 1234 654 345234
1. The -t option and -k option of sort
sort provides the -t option, which can be set later separator, -k to specify the number of columns.
Sort the first column
sort test
Sort the second column
sort -k 2 test
If you change the content of the test file to:
8723,23423 321324,213432 23,234 123,231 234,1234 654,345234
If you want to The second column is sorted by size
sort -t "," -k 2 test
If there is no -t option, it is the default space or tab key, so the -t option is not used above.
2. Use the -r option to sort in reverse order
The default sorting method of sort is ascending order, and the -r parameter is changed to descending order
sort -r test
Output result:
8723 23423 654 345234 321324 213432 234 1234 23 234 123 231
3. The -n option of sort
sort compares by ASCII code value by default, so if you look at the results in 2 above, you will find that 8723 is ranked first compared to 321324. So how do we make it sort by numerical size? This is when the -n parameter comes into play.
sort -n test
Output result:
23 234 123 231 234 1234 654 345234 8723 23423 321324 213432
sort -rn test
Output result:
321324 213432 8723 23423 654 345234 234 1234 123 231 23 234
Attachment: Detailed explanation of sort command parameters
-f Convert all lowercase letters to uppercase letters. Compare, that is, ignore case
-c Check whether the file has been sorted. If it is out of order, output the relevant information of the first out-of-order line, and finally return 1
-C Check whether the files are sorted. If they are out of order, the content will not be output and only 1 will be returned.
-M Sort by month, such as JAN is less than FEB, etc.
-b Ignore each All blank parts in front of a line are compared starting from the first visible character
-u Remove duplicate lines from the output line without changing the content of the file itself
The above is the detailed content of Detailed explanation of the use of sort command in Linux. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1653
14
1413
52
1304
25
1251
29
1224
24
What computer configuration is required for vscode
Apr 15, 2025 pm 09:48 PM
VS Code system requirements: Operating system: Windows 10 and above, macOS 10.12 and above, Linux distribution processor: minimum 1.6 GHz, recommended 2.0 GHz and above memory: minimum 512 MB, recommended 4 GB and above storage space: minimum 250 MB, recommended 1 GB and above other requirements: stable network connection, Xorg/Wayland (Linux)
Linux Architecture: Unveiling the 5 Basic Components
Apr 20, 2025 am 12:04 AM
The five basic components of the Linux system are: 1. Kernel, 2. System library, 3. System utilities, 4. Graphical user interface, 5. Applications. The kernel manages hardware resources, the system library provides precompiled functions, system utilities are used for system management, the GUI provides visual interaction, and applications use these components to implement functions.
vscode terminal usage tutorial
Apr 15, 2025 pm 10:09 PM
vscode built-in terminal is a development tool that allows running commands and scripts within the editor to simplify the development process. How to use vscode terminal: Open the terminal with the shortcut key (Ctrl/Cmd). Enter a command or run the script. Use hotkeys (such as Ctrl L to clear the terminal). Change the working directory (such as the cd command). Advanced features include debug mode, automatic code snippet completion, and interactive command history.
How to check the warehouse address of git
Apr 17, 2025 pm 01:54 PM
To view the Git repository address, perform the following steps: 1. Open the command line and navigate to the repository directory; 2. Run the "git remote -v" command; 3. View the repository name in the output and its corresponding address.
Where to write code in vscode
Apr 15, 2025 pm 09:54 PM
Writing code in Visual Studio Code (VSCode) is simple and easy to use. Just install VSCode, create a project, select a language, create a file, write code, save and run it. The advantages of VSCode include cross-platform, free and open source, powerful features, rich extensions, and lightweight and fast.
How to run java code in notepad
Apr 16, 2025 pm 07:39 PM
Although Notepad cannot run Java code directly, it can be achieved by using other tools: using the command line compiler (javac) to generate a bytecode file (filename.class). Use the Java interpreter (java) to interpret bytecode, execute the code, and output the result.
What is the main purpose of Linux?
Apr 16, 2025 am 12:19 AM
The main uses of Linux include: 1. Server operating system, 2. Embedded system, 3. Desktop operating system, 4. Development and testing environment. Linux excels in these areas, providing stability, security and efficient development tools.
vscode terminal command cannot be used
Apr 15, 2025 pm 10:03 PM
Causes and solutions for the VS Code terminal commands not available: The necessary tools are not installed (Windows: WSL; macOS: Xcode command line tools) Path configuration is wrong (add executable files to PATH environment variables) Permission issues (run VS Code as administrator) Firewall or proxy restrictions (check settings, unrestrictions) Terminal settings are incorrect (enable use of external terminals) VS Code installation is corrupt (reinstall or update) Terminal configuration is incompatible (try different terminal types or commands) Specific environment variables are missing (set necessary environment variables)
