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- SVO-SLAM environment setup guide
- Installation:PlainCMake(NoROS) First, create a working directory such as: workspace, and then perform the following needs in this directory. (Tip: Be sure not to use Chinese names, even though your system has the default Chinese name. Otherwise, the following The dependencies will be very difficult, cmake cannot find the configuration file.)mkdirworkspacecdworkspaceBoost-c++Librairies(threadandsystemareneeded)sudoapt-getinstalllibboost-all-devEigen3-Lineara
- LINUX 520 2024-03-11 16:37:02
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- Schedule tasks to specify time points and execute one-time tasks that depend on the atd service
- The scheduled task is scheduled to execute atat at a specified time point at a time, and the one-time task depends on the atd service. It needs to be started to realize the at task. The at queue is stored in the /var/spool/at directory -V: Display version information -l: List the specified queue Jobs waiting to be run; equivalent to atq-d: delete the specified job; equivalent to atrm-c: view specific job tasks [root@localhost~]#systemctlstartatd[root@localhost~]#systemctlenableatd[root@localhost~]# atnow+1minat>useraddxwzat>#
- LINUX 1215 2024-03-11 09:07:08
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- Task scheduling under Linux is divided into two types of user crontab services
- First give the order: 1. Command format: crontab[-user]filecrontab[-user][-e|-l|-r]2. Command function: Through the crontab command, we can execute specified system instructions or shellscript scripts at fixed intervals. The unit of time interval can be minutes, hours, days, months, weeks, or any combination of above. This command is especially suitable for periodic log analysis or data backup. 3. Command parameters: -user: used to set the crontab service of a certain user. For example, "-uixdba" means setting the crontab service of the ixdba user. This parameter is usually run by the root user.
- LINUX 1334 2024-03-11 08:00:23
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- Linux system: the best tool for Android application development
- With the rapid advancement of technology, mobile application development has become a global trend, among which the development of Android software is the most profound challenge and application level. For practitioners, it is particularly important to choose excellent development tools and platforms. 1. Development efficiency In order to improve the development effect, the development environment built by the Linux system has significant advantages compared with other platforms. First of all, the Linux operating system is based on its high degree of freedom, flexibility and stability. Its rich command line tools and powerful scripting language support enable programmers to code, debug and test more efficiently. Secondly, for Linux systems, the number of community members is extremely large and provides many excellent open source tools and frameworks, such as AndroidStudio and Ec
- LINUX 858 2024-03-11 08:00:21
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- Detailed explanation of MySQL performance indicators and calculation methods
- Most MySQL performance indicators can be obtained in the following two ways: MySQL performance indicators obtained by mysqladmin using the mysqladminextended-status command default to cumulative values. If you want to know the current status, you need to calculate the difference; with the parameter --relative(-r), you can see the difference of each indicator, and with the parameter --sleep(-i), you can specify the refresh frequency. Showglobalstatus can list various status values and cumulative values of MySQL server running. obtained by mysqladminextended-status command and showglobalstatus
- LINUX 498 2024-03-10 21:07:46
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- The most powerful timer interface comes from the POSIX clock series, did you know?
- The most powerful timer socket comes from the POSIX clock series. The actions of creating, initializing and deleting a timer are divided into three different functions: timer_create() (create timer), timer_settime() (initialize timer) and timer_delete(destroy it). Create a timer: inttimer_create(clockid_tclock_id,structsigevent*evp,timer_t*timerid) A process can create a specific timer by calling timer_create(). The timer is unique to each process and is not inherited when forking. cl
- LINUX 1223 2024-03-10 11:40:03
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- Work efficiency doubled! Exploring the magic of wiki open source system
- The wiki open source system that you may have heard of is the topic we are discussing today. As a high-performance tool, this system has the ability to subvert your workflow Linux system and double your efficiency. We sincerely invite you to explore its mysteries together. 1. What is a wiki open source system? The Wiki open source system is a network collaborative creation and modification platform that supports the creation and modification of a variety of web page elements, allowing multiple users to participate together, deepening team collaboration and knowledge sharing experiences. This system is suitable for different application scenarios, ranging from internal knowledge management of enterprises to encyclopedia construction of public entities. 2. Why use wiki open source system? This platform is designed to be simple and easy to use. It only takes a few operations to build a unique personal web page.
- LINUX 967 2024-03-10 11:34:08
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- Detailed explanation of the internal working mechanism of Redis
- Redis database (how Redis represents a database, how database operations are implemented) when the Redis server is initialized, redis.h/REDIS_DEFAULT_DBNUM (hereinafter abbreviated as N) databases will be created, and the IDs of the databases are from 0 to N-1, all The database is saved to the redis.h/redisServer.db array. You can switch through the "SELECT" command on the client, where the program directly uses redis.h/redisServer.db[number] to switch. However, some internal programs, such as AOF programs, replication programs and RDB programs, need to know the current database number
- LINUX 563 2024-03-10 09:13:09
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- How to configure the wireless wake-up function of the wireless network card under Linux
- Wirelesswake-on-lan (WoWLAN or WoW) allows the Linux system to enter a low-power mode while keeping the wireless network card active and still connected to the hotspot. This tutorial demonstrates how to enable WoWLAN/WoW mode on a Linux laptop or desktop computer with a wireless network card installed. Please note that not all wireless cards and Linux drivers support WoWLAN. Syntax On Linux systems, you need to use the iw command to view and manipulate wireless devices and their configurations. The format is: iwcommandiw[options]command List all wireless devices and their functions Enter the following command: $iwli
- LINUX 1368 2024-03-09 16:40:03
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- How to Randomize Your WiFi MAC Address in Ubuntu 16.04
- The flaw in this design is that it is unique, and a constant MAC address can be used to track you. Connected to Starbucks WiFi? OK, noticed. On the London Underground? Record that too. If you've ever entered your real name on a WiFi verification page, you've associated yourself with that MAC address. Without carefully reading the licensing terms of service, you could assume that free WiFi at airports is profiting from the sale of so-called customer analytics data (your personal information). For sale to hotels, restaurants, and anyone who wants to get to know you. I didn't want the information to be logged and sold to multiple companies, so I spent a few hours coming up with a solution. MAC addresses do not always change. Fortunately,
- LINUX 731 2024-03-09 10:43:23
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- Do you know some reasons why crontab scheduled tasks are not executed?
- Summary of some reasons why crontab scheduled tasks are not executed. Update time: January 9, 2019 09:34:57 Author: Hope on the field. This article mainly summarizes and introduces to you some reasons why crontab scheduled tasks are not executed. For everyone Solutions are given for each of the possible triggers, which have certain reference and learning value for colleagues who encounter this problem. Students in need can follow the editor to learn together. Preface: I have encountered some problems at work recently. The crontab scheduled task was not executed. Later, when I searched on the Internet, I found that the Internet mainly mentioned these five incentives: 1. The crond service is not started. Crontab is not a function of the Linux kernel, but relies on a cron.
- LINUX 1557 2024-03-09 09:49:15
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- Even novices can do it easily! Linux system software installation guide
- Faced with the increasingly popular technology, computers have been integrated into every corner of human life. Linux is popular for its open source nature, but installing applications on the system can still be challenging for novices. This article will comprehensively analyze the software installation steps in Linux systems to help you master this skill easily. 1. Use the package manager. In the Linux environment, the most common and convenient way to install software is to use the package manager. Each distribution version uses different package management tools due to its own characteristics. For example, the Debian camp uses the apt-get command to download Red Flag Linux, and the RedHat series chooses to use the yum command. Just enter the corresponding command on the console to quickly install the software.
- LINUX 629 2024-03-09 09:25:24
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- Several tips for setting up EwoMail mail server under CentOS
- You can prepare a server with a system cloud server or a local virtual server. The server needs to be able to connect to the Internet. Installing the centos6/7 system requires a new and clean system environment. Configure the system to check whether swap has been started. If not, you need to configure and start swap. Download the EwoMail mail server. Download the EwoMail open source version from git. Git address: https://gitee.com/laowu5/EwoMail EwoMail integrated software: Postfix: Mail server Dovecot: IMAP/POP3/mail storage Amavisd: Anti-spam and anti-virus Fail2ban: Monitoring Policy LNAMP: apach
- LINUX 732 2024-03-09 09:13:10
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- Linux software timers: the secret weapon to improve program performance
- Linux software timer, as a tool in the operating system to assist in the implementation of scheduled tasks, is characterized by providing precise time control and improving program running performance. This article will provide an in-depth analysis of the operating mechanism of Linux software timers and specific application methods from multiple directions. 1. What is a Linux software timer? Before we delve into it, we can first understand what Linux timer software is. This is essentially a powerful technical means, based on the Linux operating system, to achieve various precise timing tasks. Different from the dependence of traditional hardware timers, software timers are managed and run by the core operating system. Their unique feature is that they can operate freely without the support of hardware facilities. Using software timers, we can
- LINUX 1249 2024-03-09 08:31:19
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- Open source China APP newly launched: dynamic return, integrated large model dialogue, and easy reading of technical reports
- [Open source China APP newly launched] "Move" returns, integrates large model dialogue, and reads technical reports. Step 1: Log in to the existing Linux system, use the root account linux to set user group permissions, after logging in, as shown on the right: like this , just log in to the Linux system and set the user group permissions in Linux, and log in as the root user. Note: If you want to create users and user groups in Linux scheduled tasks, then the user you are currently logged in must have root permissions, or log in The second step is to create a group as the root user. If you don’t know the format of creating a group, enter: groupadd --help, and the prompt as shown above will appear. Note: When creating a group, you can
- LINUX 557 2024-03-09 08:14:13
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