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- To read data from a file, the application first calls an operating system function
- In file I/O, to read data from a file using a Linux file handle, the application must first call an operating system function and pass the file name, and select a path to the file to open the file. This function returns a sequence number, which is the Perl file handle (filehandle) Linux file handle. The Perl file handle is the only basis for identification of the open file. To read a piece of data from a file, the application needs to call the function ReadFile and transmit the address of the Perl file handle in video memory and the number of bytes to be copied to the operating system. When the task is completed, the file is closed by calling a system function. Not only are you writing an AI program imitating a solipsist philosopher, your program uses
- LINUX 473 2024-02-19 09:42:02
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- Methods to solve the problem of Chinese garbled characters in Linux system
- The problem of Linux Chinese garbled characters is a problem that many Chinese users often encounter when using Linux systems. The main reason for garbled Chinese characters is that the default character encoding used by the Linux system is UTF-8, but some software or applications may not be compatible with UTF-8 encoding, causing Chinese characters to not be displayed correctly. There are many ways to solve this problem. Several common solutions will be detailed below and specific code examples will be provided. Modify the terminal character encoding settings: The terminal character encoding settings determine whether the terminal can correctly
- LINUX 1472 2024-02-19 09:22:05
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- Getting Started with Linux: Easy Installation in Four Steps, Recommended by Professional Developers
- I would like to share some of my experiences in the process of installing the Linux system. I hope it will be helpful to you who are new to this field. I am a professional developer with many years of experience in operating Linux. 1. Preparation work: Before starting to deploy Linux, please be sure to have all the necessary items: a normally running computer and a readable Linux installation media (such as a USB boot disk or CD). In addition, when using PE to install a Linux system, it is recommended that you back up important files in advance and confirm that the computer power supply and accessories are securely connected. 2. Choose the appropriate Linux distribution: The Linux system provides a variety of distribution options, including the familiar Ubuntu, CentOS and Fe
- LINUX 833 2024-02-19 08:20:03
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- Algorithm analysis ideas
- Analysis framework 1. Analyze algorithm efficiency with the algorithm input scale n as a parameter 2. Time complexity: Find the basic operation O(1), and then calculate its number of runs (ignore the multiplication constant and only focus on the number of increases) 3. Number of increases :log2n
- LINUX 646 2024-02-19 08:10:28
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- List of the best Linux applications for Linux, do you know? !
- Linux is a free and open source operating system based on the Linux kernel. It consists of a wide variety of basic applications that can be used to perform many daily tasks. To make your life easier, here is a list of the best Linux applications that you must try and take help of them. 1. Mozilla Firefox Firefox is the default browser for various Linux distributions such as LinuxMint and Ubuntu. It is the fastest web browsing software on Linux with an incredibly user-friendly interface. Its manual update feature makes it a very convenient application. The browser supports many extensions and add-ons that provide users with customizable W
- LINUX 964 2024-02-19 08:00:36
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- Usage and difference between whoami and who am i commands in Linux
- The usage and difference between whoami and whoami commands in Linux require specific code examples. In Linux systems, whoami and whoami are two commonly used commands, used to view the username of the currently logged in user. Although their functionality is similar, there are some differences in usage and output results. This article will introduce the usage and differences of these two commands and provide specific code examples. whoami command The whoami command is used to display the user name of the currently logged in user. it does not require any
- LINUX 1362 2024-02-18 23:15:07
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- Guide to installing Debian
- deb installation tutorial, specific code examples are required. With the development of the Internet, software installation and management have become more and more convenient. For Linux system users, deb is a common software package format, which is widely used in Debian series distributions, such as Ubuntu, Debian, etc. This article will introduce you to the installation method of deb software package and provide specific code examples. First, we need to understand the structure of the deb package. deb file is actually a compressed package that contains the binary of the software.
- LINUX 990 2024-02-18 22:04:08
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- Parsing the options of the find command
- The find command is a commonly used file search command in Linux systems. This command can be used to find files that meet the conditions in the specified directory. The find command has many parameters and powerful functions. This article will analyze some commonly used parameters in detail and provide specific code examples. 1. Basic Usage The basic syntax of the find command is as follows: find [path...] [expression] where path represents the directory to be searched, which can be one or more. expression means
- LINUX 711 2024-02-18 21:51:21
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- How to deploy Harbor on Linux
- Title: How to deploy Harbor under Linux - specific code examples Although Docker container technology has developed rapidly and been widely used in recent years, security has always been the focus of attention. As an enterprise-level Docker image warehouse, Harbor provides a complete set of solutions to help users better manage and ensure the security of images in the Docker container environment. This article will introduce how to deploy Harbor under Linux system and provide detailed code examples. The following are specific
- LINUX 1336 2024-02-18 21:29:08
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- Using the dd command in Linux
- Usage and code examples of the dd command in Linux 1. Command introduction The dd command is a powerful disk copy command in the Linux system. It can copy an input file to an output file and perform format conversion as needed. It can be used to create image files, backup and restore disk data, clone disk partitions, etc. The dd command is very powerful, but it is also very dangerous because it can directly read and write disk operations without confirmation, so you should be very careful when using it. 2. Common usage and code examples are copied to the disk partition.
- LINUX 1274 2024-02-18 21:20:26
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- ReiserFS is a file system in Linux
- The ReiserFS file system in Linux is a high-performance log file system suitable for processing large-scale data and multi-user environments. It is designed to optimize data storage and retrieval speed, with low fragmentation and file access times. ReiserFS was originally developed by a programmer named Hans Reiser, who started working on the project in 1993, with ReiserFS version 3 first released in 1998. Afterwards, the ReiserFS version was released in 2001
- LINUX 1162 2024-02-18 21:04:22
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- What are the memory management technologies and methods of Linux?
- Linux is an open source operating system that is widely used in various fields due to its stability and high degree of customizability. Memory management is one of the important components of the Linux system. It is responsible for managing the computer's memory resources and providing sufficient memory space for programs. This article will introduce commonly used methods in Linux memory management and provide specific code examples. Paging Memory Management Paging is one of the most commonly used memory management methods in Linux. In paged memory management, memory is divided into fixed-size page frames, each page frame size
- LINUX 831 2024-02-18 20:53:23
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- Reasons why Linux reports 'unable to connect to host' exception
- The reason why Linux reports noroutetohost exception requires specific code examples. When using the Linux system, we sometimes encounter a common exception prompt: noroutetohost (the host cannot be accessed). This exception prompt usually appears when we try to establish a network connection or access a remote host, causing us trouble. This article will explore the causes of noroutetohost exceptions and provide some specific code examples to help readers better
- LINUX 1169 2024-02-18 20:48:07
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- Advanced techniques for using the more command in Linux
- Summary of advanced usage of the more command under Linux: This article will introduce the advanced usage of the more command in the Linux operating system, including using the more command to perform text search, jump to a specified number of lines, display by page, exit the more command, etc., and provide specific instructions. Code examples. 1. Use the more command for text search. When using the more command, sometimes we need to search for specific text content. To perform a text search within the more command, use a slash (/) followed by the search keyword. For example, to
- LINUX 828 2024-02-18 19:40:08
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- Linux hard drive formatting guide
- Title: Linux hard disk formatting and related code examples Abstract: This article will introduce the steps of how to format a hard disk under a Linux system, and provide some commonly used code examples to help readers better understand and apply. Text: In Linux systems, hard disk formatting is an important operation. By formatting the hard drive, we can clear the data on the hard drive and assign it a file system to facilitate data storage and use. Below, we will introduce in detail how to format the hard disk in Linux system and provide
- LINUX 821 2024-02-18 18:56:05
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