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- Types and meanings of Linux file times
- Types and meanings of Linux file times In the Linux operating system, each file has three different types of timestamps, namely access time (atime), modification time (mtime) and change time (ctime). These three timestamps record file changes under different operations. Their meanings will be explained in detail below and corresponding code examples will be provided. Access time (atime): Access time refers to the last time the file was accessed. atime is updated when the file is read, run or browsed
- Linux Operation and Maintenance 600 2024-02-22 08:36:04
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- Linux Pipeline Command Practice: Practical Case Sharing
- Linux pipeline commands are an important tool for data flow. Multiple commands can be connected in series to achieve complex data processing and operations. This article will share practical cases to introduce related concepts and specific code examples of Linux pipeline commands to help readers better understand and use this function. 1. Concept introduction In the Linux system, the pipe command uses the vertical bar symbol | to connect two or more commands, and the output of the previous command is used as the input of the next command. This way you can easily combine multiple simple commands
- Linux Operation and Maintenance 735 2024-02-21 23:24:03
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- An in-depth analysis of the meaning of Linux file type colors
- In Linux systems, the names of files and folders are often accompanied by different colors when displayed in the terminal. These colors are not randomly assigned, but have specific meanings and uses. Understanding the meaning of Linux file type colors can help users manage files and folders more efficiently and improve work efficiency. This article will deeply analyze the meaning of Linux file type colors and help readers more comprehensively understand the characteristics and classification of file types in Linux systems. 1. Yellow In Linux systems, yellow usually indicates that the device
- Linux Operation and Maintenance 569 2024-02-21 23:09:04
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- Master the path representation in Linux system: absolute path and relative path
- Master path representation in Linux systems: absolute paths and relative paths. In Linux systems, path representation is very important basic knowledge, especially for developers and system administrators. Path representation is mainly divided into two types: absolute path and relative path. This article will illustrate the difference and usage of these two path representations through specific code examples. 1. Absolute path An absolute path is a complete path starting from the root directory, indicating the location of a file or directory in the entire file system. Absolute paths start with a slash "/", for example: /h
- Linux Operation and Maintenance 762 2024-02-21 22:24:03
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- How to set and manage Linux environment variables
- How to set and manage Linux environment variables requires specific code examples. In the Linux operating system, environment variables are dynamic values stored in the operating system. They are used to control the behavior and output of various programs. Setting and managing environment variables is very important in Linux systems. This article will introduce how to set and manage Linux environment variables, with specific code examples. View environment variables In Linux systems, we can view environment variables through the echo$VARIABLE_NAME command
- Linux Operation and Maintenance 828 2024-02-21 21:00:06
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- The difference between Linux packaging and compression and analysis of application scenarios
- The difference between Linux packaging and compression and analysis of application scenarios In the Linux environment, packaging and compression are common operations, used to organize files or directories into a separate file or reduce the file size. Although the purpose of packaging and compression is to facilitate file transmission and storage, their specific operation methods and application scenarios are different. This article will analyze the definitions, differences, and specific application scenarios of packaging and compression, and provide code examples. 1. Definition and difference between packaging and compression Definition: packaging (Archivin
- Linux Operation and Maintenance 1212 2024-02-21 20:57:03
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- How to use Linux pipe commands to improve work efficiency
- Title: How to use Linux pipeline commands to improve work efficiency In daily work, Linux system, as a widely used operating system, its powerful pipeline command function can help us process data and tasks efficiently. This article will introduce how to use Linux pipeline commands to improve work efficiency and provide specific code examples. 1. What is a Linux pipe command? The Linux pipe command is a powerful command line tool that can process the output of one command as the input of another command. by combining multiple
- Linux Operation and Maintenance 1198 2024-02-21 20:18:04
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- Comparative analysis of CentOS file systems
- In modern operating systems, file systems play a vital role, managing tasks such as data storage, file access, and data security. In the Linux operating system, there are a variety of file systems to choose from. CentOS, as a widely used Linux distribution, also has different file systems to choose from. This article will conduct a comparative analysis of several file systems commonly used in CentOS and discuss their respective characteristics, advantages and disadvantages, and applicable scenarios, aiming to help users make informed decisions when choosing file systems.
- Linux Operation and Maintenance 502 2024-02-21 19:45:03
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- CoreFreq: Introduction to CPU frequency monitoring tool under Linux
- CoreFreq: Introduction to CPU frequency monitoring tool under Linux In Linux systems, monitoring and managing CPU frequency has always been a relatively important task. By monitoring the frequency of the CPU, we can understand the operating status of the CPU in time and adjust the frequency to improve performance or reduce power consumption. In Linux systems, there are many tools that can be used to monitor CPU frequency, one of the better tools is CoreFreq. This article will introduce the basic functions of the CoreFreq tool and how to
- Linux Operation and Maintenance 1384 2024-02-21 17:12:03
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- Understand the difference between absolute paths and relative paths in Linux
- Understand the difference between Linux absolute paths and relative paths. In Linux systems, the file system is organized in a tree structure, and each file or directory has a unique path to locate their location in the file system. When using a Linux system, the concepts of absolute paths and relative paths are often involved. This article will explain the difference between absolute paths and relative paths in detail, and use code examples to illustrate their application. An absolute path is a complete path starting from the root directory describing the location of a file or directory. Root directory in Linux
- Linux Operation and Maintenance 1136 2024-02-21 16:33:03
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- Interpretation of the hidden information of Linux file type colors
- In modern operating systems, the file system is a very important and basic component. In Linux systems, each file has a unique file type, and these file types are usually represented by different colors. This article will delve into the hidden information of Linux file type colors and lead readers to decipher the mysteries hidden behind these mysterious colors. First, let’s take a look at the common file types and their corresponding colors in Linux: Ordinary files: general text files, binary files, etc., usually displayed in white
- Linux Operation and Maintenance 505 2024-02-21 15:45:03
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- The role and importance of the PATH environment variable in Linux
- "The Role and Importance of the PATH Environment Variable in Linux" The PATH environment variable is one of the very important environment variables in the Linux system. It defines which directories the system searches for executable programs. In the Linux system, when the user enters a command in the terminal, the system will search one by one in the directories listed in the PATH environment variable to see if the executable file of the command exists. If found, it will be executed. Otherwise, "commandnotfound" will be prompted. The role of the PATH environment variable: Simplified
- Linux Operation and Maintenance 713 2024-02-21 14:09:04
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- Deeply understand the working mode of Vim under Linux
- In the Linux operating system, Vim is a very powerful text editor and is widely used by programmers, system administrators and Linux user groups. Vim has multiple working modes, including normal mode, insert mode, command line mode, etc. Each mode has different functions and operation methods. In this article, we will provide an in-depth understanding of the working modes of Vim under Linux and provide specific code examples to help readers better master these modes. 1. Normal mode In Vim, when the user opens a file,
- Linux Operation and Maintenance 1325 2024-02-21 13:27:04
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- Explore the different working modes of the Vim editor
- Vim is a text editor widely loved by programmers. Its powerful functions and efficient operation methods make users put it down. Vim has multiple working modes, each with its specific functions and uses. In this article, we will explore the different working modes of the Vim editor, combined with specific code examples, to help readers better understand and master the Vim editor. 1. Normal Mode (NormalMode) Vim’s default mode is normal mode, also called command mode. In normal mode, users can use the shortcut
- Linux Operation and Maintenance 972 2024-02-21 13:18:03
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- Detailed explanation of Linux file time viewing techniques
- Detailed explanation of Linux file time viewing techniques In Linux systems, file time information is very important for file management and tracking changes. The Linux system records file change information through three main time attributes, namely access time (atime), modification time (mtime) and change time (ctime). This article details how to view and manage this file time information, and provides specific code examples. 1. Check the file time information by using the ls command with the parameter -l to list the files.
- Linux Operation and Maintenance 664 2024-02-21 13:15:03
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