mdBook is a command line tool to create books with Markdown. It is ideal for creating product or API documentation, tutorials, course materials or anything that requires a clean, easily navigable and customizable presentation.

正则表达式

wifi 爆破

a lightweight and flexible Linux® distribution that tries to Keep It Simple.

docker 私有仓库

i3 is a dynamic tiling window manager inspired by wmii that is primarily targeted at developers and advanced users.

jre docker 基础镜像

MPD (music player daemon) is an audio player that has a server-client architecture. It plays audio files, organizes playlists and maintains a music database, all while using very few resources. In order to interface with it, a separate client is needed.

mpv is a media player based on MPlayer and the now unmaintained mplayer2. It supports a wide variety of video file formats, audio and video codecs, and subtitle types. A detailed (although admittedly incomplete) list of differences between mpv and the aforementioned players can be found here.

Btrfs is a modern copy on write (COW) file system for Linux aimed at implementing advanced features while also focusing on fault tolerance, repair and easy administration.

chmod -R 777 html

firewalld is a firewall daemon developed by Red Hat. It uses nftables by default.

ps aux |grep java

jvm heap area

方法区

Java Virtual Machine Stacks

jvm 监控工具

less -N

linux 基础知识

Logical Volume Manager (LVM) is a device mapper framework that provides logical volume management for the Linux kernel.

The openSUSE project is a worldwide effort that promotes the use of Linux everywhere.

The Java Virtual Machine can support many threads of execution at once (JLS §17). Each Java Virtual Machine thread has its own pc (program counter) register.

shell

hello world

linux 用户

vsftpd (Very Secure FTP Daemon) is a lightweight, stable and secure FTP server for UNIX-like systems.

The Java® Virtual Machine

OutOfMemory

Thread Local Allocation Buffer

Class Loader Subsystem

Garbage Collection

VisualVM is a visual tool integrating commandline JDK tools and lightweight profiling capabilities.\n Designed for both development and production time use.

Circular references between beans are now prohibited by default. If your application fails to start due to a BeanCurrentlyInCreationException you are strongly encouraged to update your configuration to break the dependency cycle. If you are unable to do so, circular references can be allowed again by setting spring.main.allow-circular-references to true, or using the new setter methods on SpringApplication and SpringApplicationBuilder This will restore 2.5’s behaviour and automatically attempt to break the dependency cycle.

余弦相似性

进制转换

Eclipse it is an open source community project aimed at providing a universal development platform. The Eclipse project is best known for its multiplatform integrated development environment (IDE). Arch Linux packages (and this guide) are specifically related to the IDE.

hello world

函数式编程

Jaccard 相似系数

the Archive Tool

Oracle Java is the #1 programming language and development platform. It reduces costs, shortens development timeframes, drives innovation, and improves application services. With millions of developers running more than 60 billion Java Virtual Machines worldwide, Java continues to be the development platform of choice for enterprises and developers.

静态代理、动态代理、cglib代理

Assemble and Optimize a Set of Modules

The Java Shell Tool

分层打包

莱文斯坦距离

基础数据类型

Sorensen Dice 相似度系数

Spring Cloud provides tools for developers to quickly build some of the common patterns in distributed systems (e.g. configuration management, service discovery, circuit breakers, intelligent routing, micro-proxy, control bus, short lived microservices and contract testing). Coordination of distributed systems leads to boiler plate patterns, and using Spring Cloud developers can quickly stand up services and applications that implement those patterns. They will work well in any distributed environment, including the developer’s own laptop, bare metal data centres, and managed platforms such as Cloud Foundry.

Hyprland is a wlroots-based tiling Wayland compositor written in C++. Noteworthy features of Hyprland include dynamic tiling, tabbed windows, a clean and readable C++ code-base, and a custom renderer that provides window animations, rounded corners, and Dual-Kawase Blur on transparent windows.

以资源为中心进行URL设计

Highly customizable Wayland bar for Sway and Wlroots based compositors.

The Leading Java and Kotlin IDE

Test Driven Development

MySQL is a widely spread, multi-threaded, multi-user SQL database, developed by Oracle.

Redis is a software project that implements data structure servers. It is open-source, networked, in-memory, and stores keys with optional durability.

Git is the version control system (VCS) designed and developed by Linus Torvalds, the creator of the Linux kernel.

c

design pattern

hello world

Emacs is an extensible, customizable, self-documenting real-time display editor.

Gradle Build Tool is a fast, dependable, and adaptable open-source build automation tool with an elegant and extensible declarative build language.

Maven is a build automation tool used by Java developers to compile, build and deploy code, documentation and libraries.

Podman is an alternative to Docker, providing a similar interface. It supports rootless containers and a shim service for docker-compose.

RabbitMQ is a messaging broker, an intermediary for messaging. It gives your applications a common platform to send and receive messages, and your messages a safe place to live until received.

An open-source programming language supported by Google

ImageMagick is a free and open-source software suite for displaying, converting, and editing raster image and vector image files. It can read and write over 200 image file formats.

Nacos is an easy-to-use platform designed for dynamic service discovery and configuration and service management. It helps you to build cloud native applications and microservices platform easily.

The Spring Framework provides a comprehensive programming and configuration model for modern Java-based enterprise applications - on any kind of deployment platform.

Microsoft Windows

systemd analyze

Docker is a utility to pack, ship and run any application as a lightweight container.

GRUB (GRand Unified Bootloader) is a boot loader.

nginx (pronounced “engine X”), is a free, open-source, high-performance HTTP web server and reverse proxy, as well as an IMAP/POP3 proxy server, written by Igor Sysoev in 2005. nginx is well known for its stability, rich feature set, simple configuration, and low resource consumption.

Nmap (“Network Mapper”) is an open source tool for network exploration and security auditing. It was designed to rapidly scan large networks, although it works fine against single hosts.

Zsh is a powerful shell that operates as both an interactive shell and as a scripting language interpreter.

Samba is the standard Windows interoperability suite of programs for Linux and Unix. Since 1992, Samba has provided secure, stable and fast file and print services for all clients using the SMB/CIFS protocol, such as all versions of DOS and Windows, OS/2, Linux and many others.

systemd is a suite of basic building blocks for a Linux system. It provides a system and service manager that runs as PID 1 and starts the rest of the system.

Xorg (commonly referred to as simply X) is the most popular display server among Linux users.

xrandr is an official configuration utility to the RandR (Resize and Rotate) X Window System extension. It can be used to set the size, orientation or reflection of the outputs for a screen.

Vim is a terminal text editor. It is an extended version of vi with additional features, including syntax highlighting, a comprehensive help system, native scripting (Vim script), a visual mode for text selection, comparison of files (vimdiff(1)), and tools with restricted capabilities such as rview(1) and rvim(1).

systemd has its own logging system called the journal; running a separate logging daemon is not required. To read the log, use journalctl(1).

The pacman package manager is one of the major distinguishing features of Arch Linux. It combines a simple binary package format with an easy-to-use build system. The goal of pacman is to make it possible to easily manage packages, whether they are from the official repositories or the user’s own builds.