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What should I do if the Linux command line displays garbled characters? Set the character encoding to UTF-8 to solve the problem

When the Linux command line displays garbled characters, you can try setting the character encoding to UTF-8. It can be set through the following commands:,, "bash, exportLC_ALL=en_US.UTF-8, exportLANG=en_US.UTF-8," In Linux systems, it is a common problem for the command line to display garbled characters, which is generally due to character encoding. This article will introduce in detail how to solve the problem of garbled characters displayed on the Linux command line due to incorrect settings. 1. Understand character encoding. Before solving this problem, we need to understand the basic concept of character encoding. Character encoding is a correspondence between characters (such as letters, numbers, and punctuation marks) and two's complement numbers (0 and 1). relations advance

Aug 08, 2024 am 01:37 AM

STM32 and Linux: From hardware to software, the key to mastering the operating system mechanism

Hello, landlord! I'm not going to talk to you about the big ideas like those above, but I'm going to talk to you about the practical things. Linux and stm32 are a software platform and a hardware platform, which are completely different (remember, they are platforms!). Let's put it this way, since you like microcontrollers, you should first learn the detailed explanation of stm32 embedded Linux device driver development and lay a solid foundation for the hardware, especially various buses (usb, iic, spi...), various peripheral modules (infrared , Wenhu, mpu6050...), and then focused on ucosii, that is to say, learn to complete your tasks within the framework of the operating system, rather than simply writing programs - the understanding of the operating system mechanism Grasp is the key to distance yourself from the MCU friends around you;

Aug 07, 2024 pm 09:00 PM

Cannot Detect Device Drivers When Installing Windows 7, How to do

When installing Windows 7, it probably reminds you that "no device drivers were found windows 7 installation". This is due to the original version of Windows 7 cannot be integrated into USB 3.0 driver, and now the computer motherboard is ba

Aug 05, 2024 pm 09:30 PM

How to Fix Windows 11/10 Stuck on Welcome Screen after Login/Update

"I changed my username using netplwiz and the user folder path from SID registry folder. After reboot, user is stuck on Welcome screen. How can I bypass welcome screen on my Windows 11? Any ideas?" Some users complain that Windows

Aug 02, 2024 am 07:37 AM

A Deep Dive into Linux System Calls: New System Call to Cube a Number and Print It

Contents 1. Design purpose and requirements 2. Design content 3. Equipment and environment 4. Design ideas 5. Main data structure and process 6. Experimental test results and result analysis 7. Course design summary Attachment 1 Course design defense record Attachment 2 Source program List 1. Design purposes and requirements The design purpose of this course is to enable middle school students to understand the implementation principles of Linux system calls, master how to change the Linux kernel source code, and how to compile calling programs to call new system calls. Middle school students are required to complete this course independently and understand the concept and implementation of system calls. 2. The design content adopts the compilation kernel method operating system principle and Linux system experiment, recompiles the Linux kernel, and reduces a system tuner in Linux.

Jul 28, 2024 am 04:29 AM

Multiple ways to execute shell scripts in Linux and sharing of specific methods

There are many methods to choose from to execute shell scripts in Linux. In this article, I will share with you the specific methods of adding shell script execution permissions in Linux. The first step in creating a script file is to use the following command to create a new file with a .sh extension: [root@localhost~]#touchhello_script.sh Write a simple script and use the vim editor to open the newly created file with linux execution permissions. The following bash script is added to the file: [root@localhost~]#vimhello_script.sh Below is the script content added to the file: #!/bin/bashecho

Jul 24, 2024 am 09:51 AM

Linux schedules automatic deletion of files in a directory at regular intervals

To achieve scheduled deletion of all files in a directory, you need to use the Linux crontab command, which can be achieved with a shell script. For example, to delete all cache files under /tmp, the operation is as follows: [root@localhost~]#vi/etc/init.d/delete.sh Press i and copy the following content to the delete.sh file, then press shift+: enter wq Save and exit. #!/bin/bashdir=/tmp//The directory name to be cleared files=`ls${dir}`forfilein$filesdoif[-e${dir}/${file}];thenrm-f${

Jul 23, 2024 am 09:50 AM

Linux Linux系统红帽 Linux命令 linux认证红帽linux linux教程 linux视频

How to solve the problem that Chrome cannot translate this webpage

Google Chrome is an easy-to-use browsing software with powerful functions and a built-in translation function, which makes it convenient for users to browse foreign language pages. However, recently some users have reported that the built-in translation function cannot be used. They don’t know what’s going on. In response to this problem, this article brings a detailed solution to share with everyone, let’s take a look. How to solve the problem that Chrome cannot translate this web page? Method 1: Install a third-party translation plug-in for the Chrome browser (such as Tencent Translate, etc., you can search for which translation plug-in is better), search for the relevant plug-in in the Chrome browser's app store, and then install it. Method 2: Modify the computer’s hosts file (highly recommended) Go

Jul 22, 2024 pm 12:13 PM

Free Programming Cheat Sheets Collection

In the world of programming, cheat sheets are every developer's secret weapon. Whether you're a beginner or an experienced programmer, these cheat sheets help you quickly find the information you need and boost your productivity. Today, we've put tog

Jul 19, 2024 am 11:59 AM

How to connect a VMware virtual machine to the Internet. Detailed operations for setting up a virtual machine to access the Internet.

Vmware is a very easy-to-use virtual machine software that allows users to run different operating systems on a single desktop at the same time. Recently, some users have downloaded and installed the Vmware virtual machine and do not know how to set up the Internet. So how do the VMware virtual machines connect to the Internet? Let’s take a look at the detailed operation tutorial below. The specific operations are as follows: 1. Ensure that Linux and the virtual machine are on the same network segment. Win+r enters cmd mode, enter the command ipconfig/all to view the local IP. Enter the virtual machine command terminal and enter the command ifconfig to check the virtual machine IP. The Linux network segment must also be between the 192.168.0.1 network segment. 2. Check the default configuration of the virtual machine network card. Change to directory: cd

Jul 19, 2024 am 01:19 AM

How to adjust the maximum number of socket connection limits for web servers and cache servers under high concurrency

Web server and cache server, under high concurrency, adjust the limit of the maximum number of socket connections: 1. Change the limit of the maximum number of files that a user process can open. Effective immediately: ulimit-nxxx takes permanent effect: echo "ulimit-HSn65536">>/etc/rc.localecho "ulimit-HSn65536">>/root/.bash_profileulimit-HSn655362, changes the limit of the maximum number of TCP connections by the network kernel. /etc/sysctl.conf 1. On the Linux platform,

Jul 18, 2024 pm 06:44 PM

The master teaches you how to display the number of lines in vim editor

Often when using vi to edit a file under Linux, basically no line number is displayed. Sometimes the file must be transferred to the local computer and modified with a powerful editor. Here I will share a small command. When you edit a certain configuration When entering a file, enter the following command to display the number of lines. Applicable to any linux open source system. Setnusetnumber takes permanent effect; #vi~/.vimrc//Or directly enter and add the following command setnu to save and exit after adding! In this way, you don’t have to enter the command to check the line number every time. The above two methods can set the line number for vi. If you want to cancel, enter: setnonu and delete setnu in the vi~/.vimrc file.

Jul 17, 2024 pm 06:26 PM

Linux Linux系统红帽 Linux命令 linux认证红帽linux linux教程 linux视频

MinGW-w64 C/C++ compiler version introduction and download link

1. Direct link to download MinGW-w64C/C++ compiler resources from the official website: 2. Product introduction There are a total of five versions that can run on Windows. Let’s talk about the differences of each version separately. 1-cygwin: Equivalent to the Linux compatibility layer of Windows. Linux installs gcc, which can run most Linux software environments (not within the scope of discussion) 2-llvm: Another famous compiler clang under Unix systems and Linux systems (some The feature is not supported under Windows, but it is not gcc red flag linux download and is not recommended) 3-w6464devkit: development tool suite including gcc (recommended, other

Jul 15, 2024 pm 03:19 PM

MySQL basic installation: sharing from environment preparation to architecture, transactions, indexes and other aspects

Preface Compared with other small databases such as Oracle, SQL Server, etc., MySQL has its own shortcomings, but this has not reduced its popularity at all. For ordinary individual users and medium and large enterprises, the functions provided by MySQL are more than sufficient. However, because MySQL is an open source software, it can greatly reduce the total cost of ownership, so it is widely used in all walks of life. It is popular and widely used, so it is usually a must-ask knowledge point in written examinations, so in the next period of time, follow the editor to learn the relevant knowledge of MySQL! The editor will cover the installation, architecture, transactions, indexing, linux mobile phones, locks, sub-databases and sub-tables of mysql.

Jul 11, 2024 pm 01:40 PM