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dpkg, package manager for Debian, is a major package management tool in Debian and Debian based systems. It can be used to install, build, uninstall and manage deb format software packages. Install software When installing software with the dpkg command, you can use the - i option and specify the path of the deb installation packa ...

What is a shell? Shell is a program written in C language, which is a bridge for users to use Linux; Shell is not only a command language, but also a programming language; Shell refers to an application that provides an interface through which users can access the services of the Linux kernel Shell scripts include sh, bash, ksh, csh, ...

1. Shared Files 2. Install TensorFlow 3. Install python3 1. Shared Folders Install vmware toolsVirtual Machine Turn off Ubuntu or you cannot add shared folders In the VMware Virtual Machine window, select VM->Settings->Options->Shared Folders Click Add on the right, click Next->Select the path to the Win7 shared directory, then cl ...

poll function poll is a function in the character device driver in Linux. poll is essentially no different from select. It copies the array passed in by the user to the kernel space, and then queries the device status corresponding to each fd. If the device is ready, add an item to the device waiting queue and continue to traverse. If no r ...

File rights management I File rights management ##1, Linux user permission analysis Our linux server has strict permission levels. If the permission is too high, misoperation will increase the risk of the server. Therefore, it is very important to understand various permissions in linux system and allocate reasonable permissions to users ...

Dockerfile builds nginx and combines php 1. Build base image First, build a basic image, add a repo environment and a compilation environment, and the centos image is the initial official image. Later, build php, nginx and mysql, and use the image as base image: [root@server myCentos]# cat Dockerfile 　　#View Dockerfile file # base image FRO ...

Help command docker version Displays the version information of docker docker info Show docker details docker command -- help View the help documentation for the command Mirror command docker images View all local mirrorsparameter -a displays all mirrors-q display id only docker search You can also go to the docker hub ...

1. Problem description I just got a CentOS7 virtual machine. Although I have root permission, I found ifconfig prompt: no command found. The first reaction is that I didn't install net tools, and then Yum install net tools. The following error is reported Plug in loaded: fastestmirror Loading mirror speeds from cached hostfile Could not r ...

Flash + gunicorn enables web services to call Python / Python programs concurrently to solve the problem of multithreading / multiprocessing Project scenario: Project requirements: forward the client's request to the flash program instance via the Web server and call the python / Python program. Problem Description: since the flame framework ...

Tip: after writing the article, the directory can be generated automatically. For how to generate it, please refer to the help document on the right preface Database server downtime may be encountered in real projects, so the cluster deployment of load balancing is very important. The main mode of MySQL + Haproxy+keepalived is adopted, ...