(Basic knowledge of Linux) Linux system, U disk, ISO image file
Required tools: Linux system, USB flash drive, ISO image file. First, open the terminal in the Linux system and use the dd command. The format is as follows: sudoddif=xxx.isoof=/dev/sdb. In the command, xxx.iso is the path of your ISO image file, and of= is the path of your U disk next to it. Usually It is /dev/sdb or /dev/sdc (do not put the number 1 or 2 in front). How to confirm the U disk path: Enter in the terminal: sudofdisk-l Complete example: sudoddif=/home/mtoou/Download/xubunut.isoof=/dev/sdb Meaning: Write the location /home/ to the sdbc disk
Mar 25, 2024 am 09:20 AM
Database management expert reveals: Thrilling experience and successful solution of running Oracle 10g
As a senior expert who is familiar with the field of database management, he has focused on such matters for many years. Recently, I encountered a series of troubles when running Oracle10g on the Linux platform, and finally successfully resolved the difficulties. Today I am sharing this experience with everyone, hoping to provide reference for friends in the same situation. 1. Preparation work It is recommended that before starting the installation, you must master the knowledge of low-level Linux operations, linuxoracle10g installation diagram, and good hardware and software environment setting skills. At the same time, you also need to download a valid Oracle10g software package to ensure that it is complete and intact. 2. Installation steps The following are detailed installation steps: First, please enter the folder where the Oracle10g software package is stored and expand this
Mar 25, 2024 am 09:20 AM
Android hot fix Tinker source code analysis
A very big highlight of tinker is that it has self-developed a set of dexdiff and patch related algorithms. The main purpose of this article is to analyze this algorithm. Of course, it is worth noting that the prerequisite for analysis is that you need to have a certain understanding of the format of the dex file, otherwise you may be confused. Therefore, this article will first do a simple analysis of the dex file format, and also do some simple experiments, and finally enter the dexdiff and patch algorithm parts. 1. Brief analysis of Dex file format. First, let’s briefly understand the Dex file. When decompiling, everyone knows that the apk will contain one or more *.dex files. This file stores the code we wrote. Generally, we It will also be converted through tools
Mar 25, 2024 am 09:20 AM
Detailed explanation of command-test
The test command is a practical tool for testing conditional expressions in the shell environment. Syntax test (option) option -b: true if the file is a block special file; -c: true if the file is a character special file; -d: true if the file is a directory; - e: true if the file exists; -f: true if the file is an ordinary file; -g: true if the SGID bit of the file is set; -G: true if the file exists and is owned by the group , then it is true; -k:
Mar 25, 2024 am 08:10 AM
The usage of environment variables in Linux is divided by the same life cycle
Preface: 1. Environment variables are variables set by the operating system environment and are applicable to the user process of the entire system; 2. Environment variables can be set in commands, and the setting values will be lost when the user logs off; 3. To If it is repeatedly applicable, it is best to define it in .profile; the use of environment variables is the same as the use of local variables. 4. And before use, it must be imported with the export command. 1. Introduction to environment variable files. Environment variables in Linux include system level and user level. System-level environment variables are system variables that every user who logs in to the system must read, while user-level environment variables are the system variables that the user uses. Environment variables are loaded at the time, so the files that manage environment variables are also divided into system level and user level. 2. L
Mar 25, 2024 am 08:00 AM
Bonus: Windows package management system Chocolatey
Chocolatey introduces in detail Chocolatey is the next command line package management software for Windows. Simply put, it is apt-get of Windows. If you are accustomed to Linux operating methods and really want to use it to control Windows, please give it a try. Chocolatey, a package management system, currently contains nearly 500 commonly used software. The installation is very simple. Open the command line interface, paste the following line and press Enter: @powershell-NoProfile-ExecutionPolicyunrestricted-Command"iex((new-objectnet.webclient).Downlo
Mar 24, 2024 am 09:20 AM
Linux Kernel: Revealing the Hidden BOSS of Computer Operating Systems
Discusses the view that the Linux kernel plays an important role in computer operating systems. Linux kernel design and implementation. Through in-depth analysis of Linux kernel design and practical applications, it reveals its prominent position and influence in this field. 1. Optimized memory management By using virtual memory management technology, the Linux kernel can efficiently complete memory allocation and recycling. With the help of the replacement page algorithm, the Linux kernel is designed and implemented to accurately handle the mapping relationship between physical memory and virtual memory. Flexible adjustments can be made based on the specific needs of the application, thereby improving overall system performance. 2. The powerful process management kernel uses its excellent multi-tasking technology to enable multiple processes to coexist harmoniously in a single system. Carefully formulated
Mar 24, 2024 am 09:10 AM
red hat linux installation Red Hat Linux installation guide: no mistakes, one step to get it right
1. Ensure system compatibility. Before starting to install the RedHatLinux operating system, be sure to ensure that your computer has the corresponding software and hardware compatibility. Please refer to the RedHat official website or related communities to inquire about the system requirements and hardware support required for this cross-platform solution. At the same time, verify the specific configuration parameters of your computer, such as processor speed, memory capacity, remaining hard disk space, etc., to ensure that the process of installing and running RedHatLinux is smooth and error-free. 2. Download the appropriate ISO image file. Obtain the required version of the ISO image file from the RedHat official website. How to check the system version in linux? Be sure to ensure network stability during the download process. Please select the corresponding system rack according to your actual needs.
Mar 24, 2024 am 08:16 AM
Tips for installing OTRS on Ubuntu 16.04
OTRS, or Open Source Ticket Request System, is an open source ticket software for customer service, help desk, and IT service management. The software is written in Perl and javascript. This is a trouble ticket solution for companies and organizations that need to manage tickets, complaints, support requests, or other types of reports. OTRS supports multiple database systems including MySQL, PostgreSQL, Oracle and SQL Server. It is a multi-platform software that can be installed on Windows and Linux. In this tutorial, I will explain how to install and configure OTRS on Ubuntu16.04. I will use PostgreSQL as O
Mar 23, 2024 pm 09:20 PM
Detailed explanation of command-expr
The expr command is an expression calculation tool, use it to complete the evaluation operation of expressions. Common operators of expr: addition operation: + subtraction operation: - multiplication operation: \* division operation: / find modulus (remainder) operation: % syntax expr (option) (parameter) option --help: display the help information of the instruction ;--version: Display command version information. Parameter expression: An expression that requires a value. Example result=`expr2+3`result=$(expr$no1+5)
Mar 23, 2024 pm 05:16 PM
How to KILL a process from the command line in Linux?
The Linux command line has all the tools you need to stop a running process. Jack Wallen will tell you the details. Picture this: you open a program (perhaps from your desktop menu or the command line) and start using it, only to have the program lock up, stop running, or freeze unexpectedly. You try to run the program again, but it reports back that the original process did not shut down completely. what should you do? You want to end the process. But how? Believe it or not, the best solutions are mostly in the command line. Thankfully, Linux has every necessary tool for users to kill the errant process, however, before you execute the command to kill the process, you first need to know what the process is. what to do
Mar 23, 2024 pm 02:50 PM
Complete guide to uninstalling Kali Linux software to solve system stability problems
This study provides a comprehensive and in-depth analysis of software uninstallation problems that may arise during the penetration testing and security audit process of KaliLinux, and contributes solutions to ensure system stability and reliability. 1. Understand the installation method of the software. Before uninstalling the software from kalilinux, it is a crucial step to first determine its installation path. Then, the appropriate offloading solution is selected accordingly based on the selected path. Common installation methods include apt-get, dpkg, source code compilation and other forms. Each strategy has its own characteristics and corresponding offloading measures. 2. Use the apt-get command to uninstall software. In the KaliLinux system, the apt-get functional component is widely used to execute software packages efficiently and conveniently.
Mar 23, 2024 am 10:50 AM
Revealing the nine highlights of Alibaba Cloud Linux to make your business safer and more efficient
Alibaba Cloud, China's top cloud computing company, has achieved a prominent position in the cloud computing industry with its outstanding technical strength. Alibaba Cloud provides users with a diversified range of products and services, including a variety of practical solutions and efficient tools for Linux operating systems. Here, we have compiled nine highlights of Alibaba Cloud Linux functions for you: 1. Elastic computing Alibaba Cloud Linux has both strong scalability and reliability. Users can dynamically adjust resource configuration according to needs to achieve adaptive business load. expansion and contraction of scale. Whether you are running a small application or undertaking a large cluster task, you can run it efficiently on the Alibaba Cloud Linux platform. 2. Safe and reliable Alibaba Cloud Linux is committed to providing customers with comprehensive security guarantees
Mar 23, 2024 am 09:40 AM
Detailed explanation of command-ldconfig
ldconfig is usually run when the system starts, but when the user installs a new dynamic link library, this command needs to be run manually. Syntax ldconfig[-v|--verbose][-n][-N][-X][-fCONF][-CCACHE][-rROOT][-l][-p|--print-cache][- cFORMAT][--format=FORMAT][-V][-?|--help|--usage]path... option -v or --verbose: When using this option, ldconfig will display the directory being scanned and The dynamic link library searched and the name of the connection it created
Mar 22, 2024 pm 01:10 PM
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