Ubuntu 18 replace software source

In Centos/RHEL system, the file to configure the yum warehouse is the. Repo file under the directory / etc/yum.repo.d /. In Ubuntu system, it is the / etc/apt/sources.list file The first element of configuring system files is to back up files. Generally, system files are kb level files, which don't oc ...

Posted by iPixel on Tue, 11 Feb 2020 07:46:19 -0800

The Process of Mingo linux Kernel

process Processes are also called tasks in linux. For user space, a process is an instance of program execution.A process can be compared to a human individual: there is only one parent process and there can be multiple child processes; there are more or less valid lives; it takes on certain functi ...

Posted by parthatel on Mon, 10 Feb 2020 21:10:26 -0800

Android source compilation

Android source compilation Before compiling the source code, you need to do some preparation operations. The detailed steps are as follows: 1. Install JDK. Google requires JDK 1.8 to compile the latest version of source code 1) . download JDK1.6 at: http://download.oracle.com/otn/java/jdk/6u45-b06/jdk-6u45-linux-x64.b ...

Posted by joeywoodbury on Sun, 09 Feb 2020 08:49:09 -0800

Total s panoramic camera of ubuntu system is transformed by ROS image

Total s panoramic camera of ubuntu system is transformed by ROS image Following a blog post, after the Theta S camera was connected to the ROS system, the image matrix was published on the / image_raw topic. Let's start the file libuvc_camera.launch in the previous blog. At this time, the image has be ...

Posted by Jove on Sat, 08 Feb 2020 00:36:02 -0800

Multithreaded Concurrent Programming for C++11

Multithreaded concurrent programming for C++11 (2) The epidemic has reached 3w+, and we hope to end it soon. Based on the threading concepts learned in the previous section, I started to learn more about multi-threaded programming in the new standard of C++11. C++11 introduced five header files: atomi ...

Posted by dt_gry on Fri, 07 Feb 2020 22:36:05 -0800

Repair of group light btrfs system

[background] A few days ago, due to loose power plug and other reasons, frequent power failure; At the same time, aoteng is used for caching. After one day's restart, the virtual machine will not be able to start. There should be something wrong with the hard disk. But because of the power proble ...

Posted by osram on Thu, 16 Jan 2020 10:39:37 -0800

Use Binlog logs to restore mistakenly deleted MySQL data

Preface "Delete library and run" is a topic that programmers often talk about. Today, I will teach you how to delete!Library!Run!Road! Just kidding, the topic of this article today is how to use Mysql's built-in Binlog log to recover mistakenly deleted data. After reading this article, you ...

Posted by m2babaey on Mon, 13 Jan 2020 16:54:40 -0800

Fastdfs distributed file system installation configuration ubuntu

** Installation and configuration of Fastdfs in Ubuntu environment ** FastDFS [1]: Contents: I. Preface 2, FastDFS introduction 3, FastDFS download and installation 4, Configure tracker and storage Five, test Six, summary1, Foreword: This paper implements the installation and test of FastDFS System en ...

Posted by JonathanS on Mon, 13 Jan 2020 04:49:29 -0800

Single machine multi instance configuration of Tomcat

Sometimes you need to deploy multiple Tomcat on a server, and distinguish them through different ports, such as reverse proxy. But I don't want to simply copy tomcat, which is not convenient for future upgrade or management. At this time, I need to configure a single machine with multiple instances o ...

Posted by yurko on Sun, 12 Jan 2020 03:19:57 -0800

Github Actions user guide and Android continuous integration example

Preface Github Actions official document (the general entry of all the official documents below) gives a detailed description of many details, but if you are the first time to contact, you see a lot of details, and you don't know what they are, so you will forget them soon. This article, from the code ...

Posted by markbm on Fri, 10 Jan 2020 23:39:38 -0800