Programmer Group

3.bash configuration file There are many bash shell configuration files, which can be divided into the following categories 3.1 it is divided into two categories according to the effective scope Global configuration: for all users /etc/profile /etc/profile.d/*.sh /etc/bashrc Personal configuration: only valid for specific users ~/.bash_p ...

Take qq mailbox as an example To realize the mail function on the network, there must be a special mail server The mail server is similar to the real post office. It is mainly responsible for receiving the mail delivered by the user and delivering the mail to the e-mail of the mail recipient. 1. Zhang San connects to the SMTP server thr ...

1, Jenkins basic overview 1.1 what is Jenkins Jenkins is an open source continuous integration tool that provides a friendly operation interface. It is developed by JAVA. Jenkins is a scheduling platform that does not handle anything and calls third-party plug-ins to complete all work. Jenkins is an open source CI & CD software leader ...

preface Powerful functions in nginx, such as rewrite and proxy_pass is inseparable from his matching rules. Understand nginx and learn advanced nginx usage. You must know all kinds of matching priorities and matching syntax 1, nginx location 1. Syntax rules and priorities location [=|~|~*|!~|!~*|^~] /uri/ { ... } = ...

2.7.11 script security and set set command: can be used to customize the shell environment $- variable h: hashall, after the option is turned on, the Shell will hash the path where the command is located to avoid querying every time. Turn off the H option through set +h i: Interactive comments, including this option, indicates that the curre ...

Application scenario Recently, there is a requirement that after the server executes an instruction, it needs to back up the generated data to windows. It's not easy to check on the Internet. Some need to write a script to run in windows, but this application does not need windows operation. Instead, it monitors the operation of the server and ...

2021SC@SDUSC The code analyzed last week is mainly Framework.py. This week, we will analyze the code of other files involved in the call. 1. Analysis of other classes involved in Framework.py 1.1 brief introduction Last week, we briefly analyzed and introduced the source code of the main source code file Framework.py of the Framework p ...

preface The content of this section is to explain how to execute the command line of Linux, including basic knowledge such as command interpreter, shell configuration, alias, environment variables, etc. 1.Shell introduction Shell is the middle bridge between the kernel and users. In fact, it is the interpreter to interpret commands. ...

1. Fundamentals of programming Linus: Talk is cheap, show me the code 1.1 procedure composition Program: algorithm + data structureData: is the core of the programData structure: the type and organization of data in a computerAlgorithm: how to process data 1.2 programming style Process oriented language To do one thing, arrange two st ...

KVM deployment Introduction to virtualization Virtualization is the foundation of cloud computing. In short, virtualization enables multiple virtual machines to run on a physical server. Virtual machines share CPU, memory and IO hardware resources of physical machines, but logically, virtual machines are isolated from each other. The phy ...