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- Basic linux commands - detailed explanation of mv
- mv (option) (parameter) cut, or move and rename in the same directory 1. If the target file is a folder, the source file will be moved directly to the folder, and the name will still be the name of the source file. 2. If the target file is a file, the name of the source file will be changed at the same time. 3. If there are multiple source files, the target must be a directory, and they will be moved to the directory uniformly -b: When the target file exists, proceed first Backup is overwriting [root@bogonadmin]#mv-ba/aab/mv:overwrite`b/aa'?y[root@bogonadmin]#lsbaaaa~bb-f: When the target file exists, force overwrite [root@bogonadmin] #
- LINUX 925 2024-03-14 16:30:03
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- Comprehensive introduction to object-oriented JavaScript
- Requirements: Almost all web applications need to save some data locally, so let's make a data storage. Detailed requirements: When there is data in the local storage, the local data is used. If there is no data, the default data is used to determine whether the local data is outdated. If it is outdated, localStorage is not used by default, but other storage methods are supported, and multi-party storage must be supported. , multi-party reading abstracts objects. According to the keywords in the requirements, we abstract three objects: data access, data, storage. The data storage manager is responsible for managing data, and the externally exposed interface data object is responsible for operating data. The storage is responsible for maintaining Data, read data storage object DataStorageManagerBase exposed
- LINUX 1089 2024-03-14 15:22:19
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- Detailed explanation of segmented transmission and rendering in web pages
- I came across this knowledge recently, so I searched for some information and made some summaries. What is segmented transmission? When an http header is introduced. This header indicates that the entity is transmitted using chunked encoding. Chunked encoding can divide the entity into chunks for transmission, and each piece of content in the chunked encoding will self-identify the length. This gives web developers a clue, if multiple data are needed, and multiple data are returned slowly. You can return one piece after processing it, so that the browser can receive the HTML as early as possible and render it first. How to transfer in segments? Now that we know that we can transmit web pages together, we can modify the web pages, get the data needed together, and render them together.
- LINUX 526 2024-03-14 10:50:11
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- Linux network commands revealed, easy to fix network faults
- This topic will deeply explore the core role of network commands in the Linux operating system. With these commands, we can check network conditions and correct network faults in real time, and at the same time understand the data flow of the network. The article strives to refine Linux timers and explain in detail my unique experience in using Linux network commands. 1.ifconfig-View network interface information As a key network management tool in the Linux system, ifconfig has outstanding advantages in network parameter configuration and status query. Especially when modifying core parameters such as network card IP address, MAC address and subnet mask, its performance is extremely good. The following is its detailed and accurate operation guide: ifconfigeth0 This system has the ability to obtain ethOS
- LINUX 807 2024-03-14 09:10:11
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- From zero to proficient: A senior software engineer's exploration of Linux environment programming
- As a senior software engineer, I decided to embark on the path of exploration of Linux environment programming in the middle of my career. This journey is undoubtedly a process full of challenges and growth, which makes me deeply feel the unique charm and endless fun of Linux environment programming. First getting to know the Linux environment and learning Linux environment programming. In the early stages of Linux environment configuration, I was still unfamiliar with various commands and operations of the Linux system. However, through studying relevant materials and participating in specialized training and education, I have gradually mastered the basic operations and common commands of the Linux system. Building a Development Environment Facing the demand for Linux environment programming, in order to set up a suitable development environment, we implemented a series of data collection and practical operations, and finally decided to set up Ubuntu
- LINUX 620 2024-03-13 19:46:02
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- How to set up the PC compilation kernel and settings: Setting up compilation
- Thisisfreesoftware;seethesourceforcopyingconditions.ThereisNOwarranty;notevenforMERCHANTABILITYorFITNESSFORAPARTICULARPURPOSE. Note: The arm tool chain can be downloaded from here: reply "ARM" to view. 2. Set the compilation target. Before configuring or compiling the kernel, you must first determine the target CPU architecture and which tool chains to use during compilation. This is the most basic information that must be determined first. If you are compiling the kernel for the PC you are currently using, there is no need to set it. Otherwise, embedded l
- LINUX 770 2024-03-13 14:52:02
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- What are the differences between installing all Linux operating systems on a virtual machine? ?
- Many novices are not even familiar with the installation of Windows, let alone the installation of Linux. Even if the installation is successful, it may damage the existing Windows system, such as causing the hard disk data to be lost, Windows to fail to boot, etc. Therefore, installing a Linux system has always been a beginner's nightmare. However, these difficulties can be easily overcome through virtual machine technology. Because all operations of installing Linux on a virtual machine (such as hard disk partitioning, deleting or changing data) are performed in the virtual optical drive, it will not cause any loss to the existing data and system qqforlinux, even if the installation fails, it does not matter. The so-called virtual machine is virtualized through software technology.
- LINUX 855 2024-03-13 14:40:02
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- Practical hard disk operation viewing tool iotop
- If you know that a program is grinding your hard drive, but you are not sure which program is grinding your hard drive, then use iotop to help you. The installation command in Ubuntu is: sudoapt-getinstalliotop. After installation, enter: iotop in the terminal. Here is a specific application: you can use the left and right arrows to operate, press r to go in the opposite direction, press o to dynamically switch usage iotop-parameter – version -h to view version information, -help to view help information -o, -only display programs that are scratching the hard disk -b, -batch batch processing for recording logs -nNUM to set the number of cycles -dSEC, -delay =SEC settings
- LINUX 756 2024-03-13 13:00:04
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- Sum of AP series
- Series with same common difference is known as arithmetic series. The first term in the series is "a" and the common difference is d. The series looks like a+d, a+2d, a+3d... Find the sum of the series. Input:a=1d=2n=4Out
- LINUX 577 2024-03-13 09:43:10
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- Front-end SEO—detailed explanation
- 1. Working principle of search engine When we enter keywords in the input box and click search or query, we then get the results. Digging into the story behind it, search engines do a lot of things. Search engine websites, such as Baidu, have a very large database in the background, which stores a large number of keywords, and each keyword corresponds to many URLs. These URLs are extracted one by one from the vast Internet by the Baidu program. Collected by clicking downloads, these programs are called "search engine spiders" or "web crawlers". These hard-working "spiders" crawl on the Internet every day, from one link to another, download the content, analyze and refine it, and find the keywords. If the "spider" thinks that the keyword is not in the database and is not useful to the user, Useful
- LINUX 768 2024-03-12 18:13:02
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- The complete installation process of the new HP DL380 G9 server Linux system revealed
- I am a senior system engineer specializing in company server and network equipment maintenance. Recently, your company purchased a new HPDL380G9 server, which is planned to be equipped with Linux operating system. With my rich management experience, I decided to personally experience the installation process to ensure the smooth implementation of the project. 1. Preparation work To ensure that the installation goes smoothly, I made full preparations in advance. First, I downloaded the latest Linux distribution to my computer and verified its compatibility with the HP DL380G9 platform. Secondly, I reviewed the hardware supporting the device and ensured that the network cable connection was correct and normal. Finally, in order to load the system's hard disk image, I prepared a USB boot disk. 2.BIOS settings
- LINUX 1345 2024-03-12 17:30:03
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- How to partition a disk larger than 2T?
- Since I purchased a disk cabinet specifically for storage, I later considered dynamic management of disk capacity and planned to use LVM for dynamic expansion management. First, let the front-end mounting machine recognize the logical volume group of the disk cabinet, such as: /dev/sdb. First, introduce two types of partition tables: MBR partition table: (MBR meaning: master boot record). The maximum volume supported: 2T (T ;terabytes, 1TB=1024GB) Limits on partitions: up to 4 primary partitions or 3 primary partitions plus one extended partition. GPT partition table: (GPT meaning: GUID partition table) Maximum volume supported: 18EB, (E: exabytes, 1EB=1024TB) Each disk supports up to 128 partitions using parted
- LINUX 609 2024-03-12 15:50:03
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- Linux kernel version command (3 methods)
- 1. Check the Linux kernel version command (two methods): 1. cat/proc/version[root@localhost~]#cat/proc/versionLinuxversion2.6.18-194.8.1.el5.centos.plus([email protected]) (gccversion4.1.220080704(RedHat4.1.2-48))#1SMPWedJul711:50:45EDT20102、uname-a[root@localhost~]#uname-aLinuxlocalhos
- LINUX 1252 2024-03-12 13:16:02
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- How to enable Remote Desktop Connection on a Windows 10 computer? Tutorial is coming
- 1. Application Scenario You are a college student with a laptop in your dormitory. During normal classes, you think it is too inconvenient to bring your laptop to your dormitory, so you often only bring your iPad to your dormitory. But you want your iPad to be connected to your dormitory laptop? alright. Or, you are a social worker and sometimes want to connect your laptop at work to your desktop at home. Or, you only take your mobile phone with you and need to operate your laptop at home when you have something to do. If you have needs similar to the above, this article can help you use remote desktop to connect to a laptop in the LAN using almost any device (mobile phone, tablet, computer) anywhere there is an Internet connection. 2. What needs to be planned? When I wrote this article, I assumed that I was dealing with a freshman majoring in computer science.
- LINUX 691 2024-03-12 08:20:14
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- A must-read for newbies to C programming! Master 4 clever ways to use the malloc algorithm
- In the process of elaborating Linux programming skills, dynamic memory management undoubtedly plays a decisive role. Especially in the C language environment malloclinuxmalloclinux, the malloc (mallocarithmetic) algorithm has become one of the most commonly used dynamic memory allocation methods. After accumulating valuable experience in recent years, we have summarized the clever use of the malloc algorithm, and now reveal it to the public, hoping to help everyone improve code development efficiency. 1. Determine the memory requirements. Before calling the malloc function, it is crucial to accurately grasp the memory information required by the program, which includes key elements such as memory usage scale, type, and retention period.
- LINUX 481 2024-03-12 08:00:08
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