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- CentOS installs impalad and CentOS installs vim
- Installing and configuring software on CentOS operating system is a common task for Linux system administrators. This article will introduce how to install impalad and vim on CentOS and provide detailed steps and instructions. Installing impalad on CentOSImpala is an open source distributed SQL query engine used to process large-scale data sets. Installing impalad on CentOS allows you to build a powerful data analysis platform on your own server. The following are the steps to install impalad on CentOS: 1. Update system packages: ```sudoyumupdate 2. Install necessary dependency packages: sudoyuminstall-yc
- LINUX . vim 889 2024-02-09 23:36:22
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- How to convert file encoding formats under Linux
- When operating files under Windows in the Linux operating system, you often encounter a very troublesome problem - garbled file encoding. Especially when you need to compile a program written in Windows on a Linux host, this problem will become particularly serious, because it will not only affect the display of Chinese comments, but also cause the compiler to report an error. So, in this article, we will summarize for you the methods to solve the problem of Windows file encoding in Linux, so that you can easily deal with this problem. This is because the default file format in Windows is GBK (gb2312), while Linux is generally UTF-8. So how to check the encoding of a file and how to compare it in Linux
- LINUX . vim 851 2024-02-09 22:51:23
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- Hide Nginx version on Linux and Unix
- Displaying the current Nginx version using the CLI Nginx will display the version on error pages and in the "Server" response header field. We can verify using the following command: Example output: $curl-Ihttps://your-domain$curl-Ihttps://www.cyberciti.bizHTTP/2200server:nginx/1.17.10(Ubuntu)date:Tue,23Jun202009: 36:49GMTcontent-type:text/html;charset=UTF-8strict-transport-security
- LINUX . vim 698 2024-02-09 19:50:29
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- Linux file I/O: principles and methods
- Files are the most basic and commonly used data storage method in Linux systems. They can be text files, binary files, device files, directory files, etc. Reading and writing files is one of the most important operations in Linux programming. It involves concepts such as file descriptors, buffers, system calls, and library functions. In this article, we will introduce the basic principles and methods of Linux file I/O, including opening, closing, reading, writing, positioning, truncation, synchronization and other operations, and give examples to illustrate their usage and precautions. File Descriptor (FileDescriptor)asmall,nonnegativeintegerforuseinsubsequentsystemcal
- LINUX . vim 863 2024-02-09 18:27:27
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- 10 Linux commands and tips to improve productivity, take off immediately!
- In this article, I will show you some useful Linux command tricks. These tips will not only help you save valuable time, but also avoid unnecessary trouble in certain situations, thereby improving your work efficiency. 51Linux.top 2. Use the tab key for completion. The Tab key must be the most frequently used key in Linux. I believe everyone is already familiar with the basic usage of Linux keys. I will briefly introduce it here. The Tab key, commonly known as the tab character, is located above the CapLock key on the far left side of the keyboard and below the wavy line key. A tab stop represents four spaces that separate characters. In command line operations, it can be used to automatically complete commands, option parameters (the latest Redha
- LINUX . vim 799 2024-02-09 13:57:24
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- I'm running gVim7.3.1 on a GNU/machine
- I'm running gVim7.3 on a GNU/machine. I'd like to know if there is a way to manually change the font according to the size of the window. I'm relatively new to Vim. Linux systems modify command line font size, so I'm not familiar with it. My situation is Like this: I use DejaVuSansMono12 as my default font, but sometimes I want to switch to the Terminus9 linux system to modify the command line font size when I want to shrink the Vim window to see what's on the screen. (You know, for those of us with People with small laptop screens and don't want to switch between workspaces...!) So I want to know if I shrink the command in the .vimrc file, if I shrink the default window size to enough
- LINUX . vim 368 2024-02-09 11:45:12
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- Ubuntu ARM Linux: An excellent operating system for ARM-based devices
- You may know that Ubuntu is a popular Linux distribution that runs on a variety of personal computers and servers and provides a user-friendly interface and rich software packages. But, did you know that Ubuntu can also run on ARM-based devices? The ARM architecture is a low-power, high-performance processor design that is widely used in smartphones, tablets, Raspberry Pi and other devices. UbuntuARMLinux is a version of Ubuntu specially customized for ARM architecture devices. It allows you to enjoy the advantages and features of Ubuntu on these devices. This article will introduce the main features, installation methods and usage tips of UbuntuARMLinux, so that you can easily install it on the ARM architecture
- LINUX . vim 785 2024-02-09 11:03:21
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- go grpc: cannot import github.com/golang/protobuf/proto (no required module provides package 'github.com/golang/protobuf/proto')
- The proto file is importing "github.com/golang/protobuf/proto" instead of "google.golang.org/protobuf/proto" when "protoc --proto_path=protoproto/*.proto --go_out=plugins" =grpc :pb" command import file import(fmt"fmt"proto"github.com/golang/protobuf/proto"math"math")...>
- Golang . vim 1205 2024-02-09 09:00:11
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- The difference between Linux commands su and sudo
- I have always been confused about the two commands su and sudo. Recently, after a special search, I finally figured out the relationship and usage between them. In this article, I will systematically summarize them. 1. Preparation work Since this article involves user switching, I need to prepare several test users in advance to facilitate subsequent switching operations. In Linux, the command to create a new user is useradd. Generally, the path of this command will be included in the environment variable PATH. If there is no response when typing the useradd command directly, you can use an absolute path, such as /usr/sbin/useradd. It should be noted that only the root user can execute the useradd command. Next, we
- LINUX . vim 625 2024-02-05 16:03:02
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- A more modern and intuitive Linux text editor than Vim
- If you're tired of Vi and Vim's weird interfaces and cumbersome key bindings, why not give the Micro editor a try? Command-line text editors prove the usefulness of the Linux terminal, allowing you to edit files without leaving the terminal. These editors use fewer resources and are very fast, making them perfect for some quick edits. Some popular command line text editors include Vi, Vim, and Nano. They come pre-installed on most Linux distributions. However, for beginners, learning Vi or Vim's curves and keybindings can be somewhat difficult. At this time, Micro text editor becomes an easier choice. How Micro compares to other editors Micro claims for itself
- LINUX . vim 725 2024-02-05 14:00:13
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- A complete guide to configuring Linux environment variables, beginners must know...
- When customizing software installation, you often need to configure environment variables. Below are various ways to configure environment variables. In the following example, the environment we use is as follows: Operating system: Ubuntu14.0 User name: uusama The path to which MySQL environment variables need to be configured: /home/uusama/mysql/bin View environment variables in Linux The following is to view environment variables Method: Use the export command to display all environment variables defined by the current system. Use the echo$PATH command to output the value of the current PATH environment variable. The effect of executing these two commands is as follows: uusama@ubuntu:~$exportdeclare-xH
- LINUX . vim 704 2024-02-05 13:00:18
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- Linux sets dynamic library paths and environment variables
- After installing source code compiled libraries on Linux, we need to enable the system to recognize them by default. Assume that we have installed the library under the path /usr/local/aarch64_qt5.12.0: 1. Set the dynamic library link configuration. If the dynamic library link configuration is not performed, the system will not be able to find the required *.so file, causing the software to fail to execute. . You can check the dependency status by executing the ldd command, for example: pi@NanoPi-NEO-Plus2:~$ldduntitledlinux-vdso.so.1=>(0x0000ffffba839000)libQt5Widgets.so.5=>notfoundlibQt
- LINUX . vim 1211 2024-02-05 11:42:17
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- When playing with Linux systems and configuring environment variables, you can't avoid these 6 methods!
- Linux environment variable configuration When installing software, you often need to configure environment variables. The following are examples of various environment variable configuration methods. The following are some environment instructions: System: Ubuntu14.0 User name: uusama Need to configure MySQL environment variables Path: /home/uusama/mysql/binLinux Reading environment variables Method of reading environment variables: Use the export command to display all the current system definitions environment variables. Use the echo$PATH command to output the value of the current PATH environment variable. The execution effect of these two commands is as follows: uusama@ubuntu:~exportdeclare-xHOME="/home/
- LINUX . vim 1011 2024-02-05 11:36:15
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- Choose the most stable version: Recommended guide for choosing a Go language development environment
- Go development environment selection guide: The key to finding the most stable version In Go development, choosing a stable development environment is crucial to improving development efficiency and code quality. This article will provide you with the keys to choosing the most stable version of your Go development environment and illustrate it with specific code examples. 1. Choose a stable Go version. Go language versions are updated frequently, but not every version is suitable for development. To ensure the stability of the development environment, it is recommended to choose the latest stable version. You can view the latest stable version with the following command: gove
- Golang . vim 1324 2024-02-01 08:18:17
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- What is the difference between JSP and HTML? A brief comparison
- Differences between JSP and HTML JSP (JavaServerPages) and HTML (HypertextMarkupLanguage) are both programming languages used to create web pages, but there are some key differences between them. 1. Language type JSP is a server-side scripting language, while HTML is a client-side markup language. The JSP code is executed on the server side and the results are sent to the client browser. HTML code is executed in the client browser. 2. Head
- javaTutorial . vim 1051 2024-01-31 17:37:06
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