GCC 9.2 compiler installation method and C++17 standard test example in Ubuntu 16 system

1. Download the source file    http://mirror.linux-ia64.org/gnu/gcc/releases/gcc-9.2.0/   2 compile and install #decompression tar zxvf gcc-9.2.0.tar.gz #Create compilation directory mkdir gcc-9.2.0-build As shown in the figure   3 download dependency package cd /home/gcc/gcc-9.2.0-build ...

Posted by gijew on Sun, 14 Jun 2020 09:25:44 +0200

Image image and Container basic chapter

preface This is a basic article about image and container, although some of it is related to the article written in 18 years Enter the door of Docker and Kubernetes container world There are overlaps, but with my familiarity with containers in recent years, I would like to share some of my knowledge and serve as a technical foreshadowing for my ...

Posted by jchemie on Sat, 13 Jun 2020 09:16:31 +0200

Social security card information reading

In recent years, with the popularization and development of medical intelligent self-service terminal, the unattended self-service terminal realizes the patient's independent appointment, registration, report query and other services. It is not only convenient for patients to see a doctor, but also i ...

Posted by daftdog on Fri, 12 Jun 2020 12:29:19 +0200

RNA SEQ process learning notes (12) - R package related operations and domestic image source settings

Reference article:4 installation methods of R packageR language pack related commandssetRepositoriesR install.packages() set domestic CRAN imageTsinghua University open source software image stationR language - default mirror settingsR package installation and setting image It's very difficult for novic ...

Posted by robs99 on Thu, 11 Jun 2020 09:38:56 +0200

Exploration and test of 1PPS time synchronization function of GPS

Recently, in the study of GPSD related information, it is found that GPSD can cooperate with NTPD to achieve high-precision time synchronization function, so this topic is involved. At present, Ublox F9P module is in hand, UART outputs NEMA data, and another GPIO outputs 1PPS pulse First, look at a ...

Posted by igorlopez on Thu, 11 Jun 2020 05:41:44 +0200

Script Installation Apache and Working Mode

1. Introduction First, you need to understand the MPM (Multi-Processing Modules) that Apache uses. MPM is the core of Apache, which manages network connections and dispatches requests.There are three types of MPM in Apache (perfork, worker, event). Apache Version 2.4 New features: 1. MPM supports loading at runtime; however, to tur ...

Posted by Pnop on Mon, 08 Jun 2020 18:19:59 +0200

python programming from introduction to practice

1. Computer core foundation 1.1 what is language? What is programming language? Why programming languages? Language is actually the medium of communication between people, such as English, Chinese, Russian, etc. Programming language is the medium of communication between people and computers, The purp ...

Posted by earunder on Sun, 07 Jun 2020 12:41:44 +0200

vnc,vnc remote control tutorial, vnc server installation tutorial diagram.

VNC introduction VNC is a remote control tool software. VNC is a free open source software based on UNIX and Linux operating system. It has powerful remote control ability, high efficiency and practicality. iis7 server management tool is a free VNC connection software. It supports batch opening and installation of VNC servers. It can connect m ...

Posted by ashly on Tue, 02 Jun 2020 16:50:15 +0200

nfs service, autofs auto mount

cifs - NFS (file system sharing) Note: the server version should be consistent with the image Server: yum install nfs-utils -y 15 systemctl start nfs 16 firewall-cmd --get-services 17 firewall-cmd --permanent --add-service=nfs ##Add firewall policy 18 firewall-cmd --permanent --add-service=rpc ...

Posted by SevereSoldier on Sun, 31 May 2020 18:39:38 +0200

Linux command (30)ls command

ls command Function description: Lists a list of files (including subdirectories) in a specified directory, but does not display the contents of the files Usage: ls [OPTION]... [FILE]... option Effect -a Show all files, including hidden files -A Show all files except.And.. -l Show detailed properties of the file -h Converts the f ...

Posted by mcovalt on Thu, 28 May 2020 18:33:58 +0200