Programmer Group

It's finally done! HomeBrew homebrew is a good installation tool under OS X, similar to apt get under linux However, from last summer vacation, the installation of this software can not be installed, baidu several times can not.. Several more installations were attempted during.. Uninstall, re install several times, or not.. This is an e ...

1, if statement Single branch if statement Syntax (spaces at the beginning and end of brackets cannot be omitted): if [conditional judgment]; then program fi #Or if [conditional judgment] then program fi   Example: #!/bin/bash #If the usage rate of the root partition reaches 80, a warning will be issued and a prompt messag ...

First of all, Minio has written clearly and in Chinese on its website. https://docs.min.io/cn/ In the project, the OSS function needs to be replaced and implemented. The code corresponding to the original public cloud implementation has been encapsulated into a tool class, and the factory method mode is adopted. As long as the mini interface a ...

1. Preface Today, the leader asked to set up a set of svn servers to store some documents, which was supposed to be a very simple thing, but the process was not so smooth, mainly because he did not understand the problems caused by SVNParentPath and SVNPath, and only after finding the documents and debugging, did he find out their use and diff ...

Simple voting DApp Next, we will start to make a DApp. Although it is a very simple voting application, it will contain a complete workflow and interaction page. The main steps to build this application are as follows: We first install an analog blockchain called ganache, which can let our program run in the development environment. Writ ...

1. Questions In a project architecture, use the SpringCloud microservice architecture, which configures Alibaba-Cloud to use SpringCloud components. The Service Discovery and Configuration Center uses Alibaba's open source component nacos, nacos-server is deployed in the centos7.0 environment under linux. Each service starts with a con ...

OpenMax is a unified multimedia framework. ffmpeg supports H264 OpenMax encoding. This paper records how to enable OpenMax encoding. ffmpeg version: 4.0 OpenMax header version: 1.2 First download ffmepg, then the header file of OpenMax, and extract the zip of the header file to get Copy the header file to the include of the corresponding pla ...

1 CORTEX-M 1.1 boot program Take stm32 as an example, add an online upgrade boot program with rom address: LR_IROM1 0x08000000 0x00004000 { ; load region size_region ER_IROM1 0x08000000 0x00004000 { ; load address = execution address *.o (RESET, +First) *(InRoot$$Sections) .ANY (+RO) } RW_IRAM1 0x20000000 0x00020000 ...

Binary deployment is relatively simple, so you can go to MySQL official website to download the MySQL binary package without installing the dependent environment. Or download through the link of my network disk, which contains the script for automatic deployment. Note: the latest MySQL version 8.0 is completely consistent with the deployment p ...

Redis Sentinel is a distributed system. You can run multiple Sentinel processes in one architecture. These processes use the gossip protocols to receive information about whether the primary server is offline, and use the agreement protocols to decide whether to perform automatic failover, And which slave server to choose as the new master serv ...