20120518 power shell_文字處理及輕量測試
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This document discusses various techniques for working with strings and text files in PowerShell including: 1. Creating strings using single or double quotes, and using backticks to span strings across multiple lines. 2. Reading and writing content from text files using Get-Content and Set-Content, including joining lines with newlines and extracting numbers using regular expressions. 3. Finding strings within multiple text files using Select-String and filtering results.
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The document describes a custom DataMapper adapter for MongoDB. It discusses how the adapter initializes by connecting to MongoDB and setting naming conventions. It also covers how the adapter implements the main DataMapper methods like create, read, and parsing query conditions to translate them to MongoDB queries. The adapter allows DataMapper models and queries to work with a MongoDB backend instead of a relational database.
Chapter 2 wbp.pptx
The document provides information on arrays, functions, and graphics in PHP. It defines different types of arrays in PHP like indexed/numeric arrays, associative arrays, and multidimensional arrays. It also explains various array functions in PHP like extract(), compact(), implode(), explode(), array_flip(), unset(), sorting arrays, and more. These functions allow manipulating, combining, sorting and extracting data from arrays in PHP.
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Perl6 Regexen: Reduce the line noise in your code.
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vim
The document discusses the basics of using the Vim text editor. It provides an overview of Vim's modes including normal mode commands like h, j, k, l for movement and dd for deleting lines. It also covers insert mode, command mode, and combining commands with quantities. Examples are given for deleting text ranges and repeating commands. The document recommends resources for learning more about Vim.
PostCss
PostCSS is a tool for transforming CSS with JS plugins. It allows you to write CSS and use future CSS syntax now through plugins like Autoprefixer (which adds vendor prefixes), CSSnext (which supports CSS variables and mixins), and PreCSS (which allows Sass-like syntax). Other PostCSS plugins include postcss-sorting (to sort CSS rules), postcss-sprites (to generate image spritesheets), and CSS Modules (to scope CSS to components).
ReactJs
This document is a tutorial on React js that covers getting started with React, creating components, composing components with properties, adding Markdown, and hooking up components to a data model. It includes sections on your first component, React developer tools, using component properties, adding Markdown, and connecting components to data through multiple steps. The tutorial aims to teach developers how to build React applications.
Docker
Docker is an open platform for developing, shipping, and running applications. It enables separating applications from infrastructure so software can be delivered quickly. Docker uses features of the Linux kernel like namespaces and cgroups to deliver functionality. Containers are more lightweight than virtual machines, using less disk space and starting faster, while still providing isolation. Docker uses images and repositories to package and distribute applications. The Dockerfile defines how to build images from a base image and run commands.
Semantic ui
Semantic UI is a front-end framework started in 2013 that helps create beautiful and responsive layouts using human-friendly HTML. It treats words and classes as exchangeable concepts, using syntax from natural languages for intuitive class names. Semantic UI includes tools for simplified debugging, intuitive JavaScript behaviors, and customizable themes through an installation process involving Node.js, Gulp, and included files. It has a folder structure for component types and supports custom themes, sitewide defaults, component defaults, and overrides.
node.js errors
The document discusses four categories of errors in Node.js - standard JavaScript errors, system errors from underlying OS constraints, user-specified errors from application code, and assertion errors from logic violations. It also covers how errors propagate and can be intercepted using try/catch blocks, callbacks, and EventEmitter events. Errors are handled asynchronously in Node.js and the Error class can be used to create new error objects.
Process control nodejs
The document discusses process control in Node.js using state machines, promises, and generators. It covers using EventEmitter to create a state machine that emits events. It explains how promises are used to handle asynchronous operations and avoid callback hell. Generators are used to pause and resume functions through the yield keyword.
Expression tree
Expression trees represent code in a tree-like data structure where each node is an expression. This enables dynamic modification of executable code, execution of LINQ queries in various databases, and creation of dynamic queries. Expression trees can be compiled into executable code using the Expression<TDelegate>.Compile() method.
flexbox report
CSS Flex Box Layout is a CSS3 web layout model that allows elements within a container to be automatically arranged and resized depending on screen size. It defines flex containers and flex items, with properties that control alignment, order, sizing, and distribution of space. Common flex properties include flex-direction, flex-wrap, justify-content, align-items, and properties for individual flex items like order, flex-grow, and align-self. Flexbox provides more flexible layout options compared to traditional CSS box model properties.
Node child process
The child_process module provides several methods for spawning child processes from Node.js applications including exec, execFile, spawn, and fork. exec spawns a shell and runs a command, passing stdout and stderr to a callback. execFile is similar but spawns directly without a shell. spawn spawns a process and returns a ChildProcess object for sending/receiving messages. fork spawns a new Node.js process and allows sending messages between parent and child.
20160415ken.lee
This document discusses ShowModalDialog for Chrome, which is a library that aims to provide modal dialog functionality for Chrome similar to IE's ShowModalDialog method. It covers Chrome and IE compatibility issues with modal dialogs and provides examples of using ShowModalDialog for Chrome, including customizing select options and accessing event handlers via jQuery. It also demonstrates using eval() to evaluate JavaScript expressions and executing code on document ready.
Peggy elasticsearch應用
The document discusses Elasticsearch concepts and operations including:
1. Field datatypes in Elasticsearch including simple, hierarchical, and specialized types.
2. Search operations using GET and POST, and query syntax including query_string, bool, date range, and nested queries.
3. Additional query parameters like size, from, sort, filter, and aggregations to customize search results.
4. The scan and scroll API for efficiently retrieving large result sets.
Expression tree
Expression trees represent code in a tree-like data structure where each node is an expression. This enables dynamic modification of executable code, execution of LINQ queries in various databases, and creation of dynamic queries. Expression trees can be compiled into executable code using the Expression<TDelegate>.Compile() method.
D3js learning tips
D3.js is a JavaScript library for manipulating documents based on data. It allows binding data to the DOM and applying data-driven transformations. The document discusses using D3.js to create force-directed graphs by binding data to SVG elements like paths, circles, and text. Key aspects covered include the D3 force layout to simulate physical forces on nodes, and SVG attributes to define paths, circles, text position and styling.
git command
This document provides information on various Git commands including git init, git config, git add, git reset, git commit, git log, git branch, git checkout, git merge, and others. It explains what each command does, such as git init creating an empty Git repository, git config setting user information, git add staging files, and git commit permanently storing file changes. It also covers basic branching and merging workflows.
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High performance Serverless Java on AWS- GoTo Amsterdam 2024
Java is for many years one of the most popular programming languages, but it used to have hard times in the Serverless community. Java is known for its high cold start times and high memory footprint, comparing to other programming languages like Node.js and Python. In this talk I'll look at the general best practices and techniques we can use to decrease memory consumption, cold start times for Java Serverless development on AWS including GraalVM (Native Image) and AWS own offering SnapStart based on Firecracker microVM snapshot and restore and CRaC (Coordinated Restore at Checkpoint) runtime hooks. I'll also provide a lot of benchmarking on Lambda functions trying out various deployment package sizes, Lambda memory settings, Java compilation options and HTTP (a)synchronous clients and measure their impact on cold and warm start times.
Skybuffer SAM4U tool for SAP license adoption
Manage and optimize your license adoption and consumption with SAM4U, an SAP free customer software asset management tool.
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zkStudyClub - LatticeFold: A Lattice-based Folding Scheme and its Application...
Folding is a recent technique for building efficient recursive SNARKs. Several elegant folding protocols have been proposed, such as Nova, Supernova, Hypernova, Protostar, and others. However, all of them rely on an additively homomorphic commitment scheme based on discrete log, and are therefore not post-quantum secure. In this work we present LatticeFold, the first lattice-based folding protocol based on the Module SIS problem. This folding protocol naturally leads to an efficient recursive lattice-based SNARK and an efficient PCD scheme. LatticeFold supports folding low-degree relations, such as R1CS, as well as high-degree relations, such as CCS. The key challenge is to construct a secure folding protocol that works with the Ajtai commitment scheme. The difficulty, is ensuring that extracted witnesses are low norm through many rounds of folding. We present a novel technique using the sumcheck protocol to ensure that extracted witnesses are always low norm no matter how many rounds of folding are used. Our evaluation of the final proof system suggests that it is as performant as Hypernova, while providing post-quantum security.
Paper Link: https://eprint.iacr.org/2024/257
Dandelion Hashtable: beyond billion requests per second on a commodity server
This slide deck presents DLHT, a concurrent in-memory hashtable. Despite efforts to optimize hashtables, that go as far as sacrificing core functionality, state-of-the-art designs still incur multiple memory accesses per request and block request processing in three cases. First, most hashtables block while waiting for data to be retrieved from memory. Second, open-addressing designs, which represent the current state-of-the-art, either cannot free index slots on deletes or must block all requests to do so. Third, index resizes block every request until all objects are copied to the new index. Defying folklore wisdom, DLHT forgoes open-addressing and adopts a fully-featured and memory-aware closed-addressing design based on bounded cache-line-chaining. This design offers lock-free index operations and deletes that free slots instantly, (2) completes most requests with a single memory access, (3) utilizes software prefetching to hide memory latencies, and (4) employs a novel non-blocking and parallel resizing. In a commodity server and a memory-resident workload, DLHT surpasses 1.6B requests per second and provides 3.5x (12x) the throughput of the state-of-the-art closed-addressing (open-addressing) resizable hashtable on Gets (Deletes).
“Temporal Event Neural Networks: A More Efficient Alternative to the Transfor...
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For the full video of this presentation, please visit: https://www.edge-ai-vision.com/2024/06/temporal-event-neural-networks-a-more-efficient-alternative-to-the-transformer-a-presentation-from-brainchip/
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Mutation Testing for Task-Oriented Chatbots
Conversational agents, or chatbots, are increasingly used to access all sorts of services using natural language. While open-domain chatbots - like ChatGPT - can converse on any topic, task-oriented chatbots - the focus of this paper - are designed for specific tasks, like booking a flight, obtaining customer support, or setting an appointment. Like any other software, task-oriented chatbots need to be properly tested, usually by defining and executing test scenarios (i.e., sequences of user-chatbot interactions). However, there is currently a lack of methods to quantify the completeness and strength of such test scenarios, which can lead to low-quality tests, and hence to buggy chatbots.
To fill this gap, we propose adapting mutation testing (MuT) for task-oriented chatbots. To this end, we introduce a set of mutation operators that emulate faults in chatbot designs, an architecture that enables MuT on chatbots built using heterogeneous technologies, and a practical realisation as an Eclipse plugin. Moreover, we evaluate the applicability, effectiveness and efficiency of our approach on open-source chatbots, with promising results.
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Join us to learn how UiPath Apps can directly and easily interact with prebuilt connectors via Integration Service--including Salesforce, ServiceNow, Open GenAI, and more.
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5th LF Energy Power Grid Model Meet-up Slides
5th Power Grid Model Meet-up
It is with great pleasure that we extend to you an invitation to the 5th Power Grid Model Meet-up, scheduled for 6th June 2024. This event will adopt a hybrid format, allowing participants to join us either through an online Mircosoft Teams session or in person at TU/e located at Den Dolech 2, Eindhoven, Netherlands. The meet-up will be hosted by Eindhoven University of Technology (TU/e), a research university specializing in engineering science & technology.
Power Grid Model
The global energy transition is placing new and unprecedented demands on Distribution System Operators (DSOs). Alongside upgrades to grid capacity, processes such as digitization, capacity optimization, and congestion management are becoming vital for delivering reliable services.
Power Grid Model is an open source project from Linux Foundation Energy and provides a calculation engine that is increasingly essential for DSOs. It offers a standards-based foundation enabling real-time power systems analysis, simulations of electrical power grids, and sophisticated what-if analysis. In addition, it enables in-depth studies and analysis of the electrical power grid’s behavior and performance. This comprehensive model incorporates essential factors such as power generation capacity, electrical losses, voltage levels, power flows, and system stability.
Power Grid Model is currently being applied in a wide variety of use cases, including grid planning, expansion, reliability, and congestion studies. It can also help in analyzing the impact of renewable energy integration, assessing the effects of disturbances or faults, and developing strategies for grid control and optimization.
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-Insightful presentations covering two practical applications of the Power Grid Model.
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Must Know Postgres Extension for DBA and Developer during Migration
Mydbops Opensource Database Meetup 16
Topic: Must-Know PostgreSQL Extensions for Developers and DBAs During Migration
Speaker: Deepak Mahto, Founder of DataCloudGaze Consulting
Date & Time: 8th June | 10 AM - 1 PM IST
Venue: Bangalore International Centre, Bangalore
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Key Takeaways:
* Learn about crucial extensions like oracle_fdw, pgtt, and pg_audit that ease migration complexities.
* Gain valuable strategies for implementing these extensions in PostgreSQL to achieve license freedom.
* Discover how these key extensions can empower both developers and DBAs during the migration process.
* Don't miss this chance to gain practical knowledge from an industry expert and stay updated on the latest open-source database trends.
Mydbops Managed Services specializes in taking the pain out of database management while optimizing performance. Since 2015, we have been providing top-notch support and assistance for the top three open-source databases: MySQL, MongoDB, and PostgreSQL.
Our team offers a wide range of services, including assistance, support, consulting, 24/7 operations, and expertise in all relevant technologies. We help organizations improve their database's performance, scalability, efficiency, and availability.
Contact us: info@mydbops.com
Visit: https://www.mydbops.com/
Follow us on LinkedIn: https://in.linkedin.com/company/mydbops
For more details and updates, please follow up the below links.
Meetup Page : https://www.meetup.com/mydbops-databa...
Twitter: https://twitter.com/mydbopsofficial
Blogs: https://www.mydbops.com/blog/
Facebook(Meta): https://www.facebook.com/mydbops/
Monitoring and Managing Anomaly Detection on OpenShift.pdf
Monitoring and Managing Anomaly Detection on OpenShift
Overview
Dive into the world of anomaly detection on edge devices with our comprehensive hands-on tutorial. This SlideShare presentation will guide you through the entire process, from data collection and model training to edge deployment and real-time monitoring. Perfect for those looking to implement robust anomaly detection systems on resource-constrained IoT/edge devices.
Key Topics Covered
1. Introduction to Anomaly Detection
- Understand the fundamentals of anomaly detection and its importance in identifying unusual behavior or failures in systems.
2. Understanding Edge (IoT)
- Learn about edge computing and IoT, and how they enable real-time data processing and decision-making at the source.
3. What is ArgoCD?
- Discover ArgoCD, a declarative, GitOps continuous delivery tool for Kubernetes, and its role in deploying applications on edge devices.
4. Deployment Using ArgoCD for Edge Devices
- Step-by-step guide on deploying anomaly detection models on edge devices using ArgoCD.
5. Introduction to Apache Kafka and S3
- Explore Apache Kafka for real-time data streaming and Amazon S3 for scalable storage solutions.
6. Viewing Kafka Messages in the Data Lake
- Learn how to view and analyze Kafka messages stored in a data lake for better insights.
7. What is Prometheus?
- Get to know Prometheus, an open-source monitoring and alerting toolkit, and its application in monitoring edge devices.
8. Monitoring Application Metrics with Prometheus
- Detailed instructions on setting up Prometheus to monitor the performance and health of your anomaly detection system.
9. What is Camel K?
- Introduction to Camel K, a lightweight integration framework built on Apache Camel, designed for Kubernetes.
10. Configuring Camel K Integrations for Data Pipelines
- Learn how to configure Camel K for seamless data pipeline integrations in your anomaly detection workflow.
11. What is a Jupyter Notebook?
- Overview of Jupyter Notebooks, an open-source web application for creating and sharing documents with live code, equations, visualizations, and narrative text.
12. Jupyter Notebooks with Code Examples
- Hands-on examples and code snippets in Jupyter Notebooks to help you implement and test anomaly detection models.
Introduction of Cybersecurity with OSS at Code Europe 2024
I develop the Ruby programming language, RubyGems, and Bundler, which are package managers for Ruby. Today, I will introduce how to enhance the security of your application using open-source software (OSS) examples from Ruby and RubyGems.
The first topic is CVE (Common Vulnerabilities and Exposures). I have published CVEs many times. But what exactly is a CVE? I'll provide a basic understanding of CVEs and explain how to detect and handle vulnerabilities in OSS.
Next, let's discuss package managers. Package managers play a critical role in the OSS ecosystem. I'll explain how to manage library dependencies in your application.
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Dandelion Hashtable: beyond billion requests per second on a commodity server
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Introduction of Cybersecurity with OSS at Code Europe 2024
Introduction of Cybersecurity with OSS at Code Europe 2024
20120518 power shell_文字處理及輕量測試
- 1. 文字處理及輕量測試 Jason
- 6. -like
- 7. -like
- 8. -replace
- 9. Get-Content $lines = Get-Content .Test.txt $lines.GetType() $lines[0] $lines[0..4]
- 10. Param Param($path) $lines = Get-Content $path $lines.length $lines.GetType() Test.ps1 .Test.txt
- 11. Get-Content String Param($Path) $lines = Get-Content -Path $Path $newLine = [System.Environment]::NewLine $content = [String]::Join($newLine,$lines) $content
- 12. Set-Content $files = dir *.txt Set-Content -Value $files -Path Test1.txt
- 13. Extract-Number # .ExtractNumbers.ps1 Test.txt Param($path) $nums = Get-Content $path $numberMatcher = [regex] "d+" $matches = $numberMatcher.Matches($nums) foreach ($match in $matches) { if ($match.Success) { $number = $match.Groups[0].Value Write-Host "number:$number" } }
- 14. FindStringInFiles #.FindString.ps1 "1" C:powerShell *.txt Param($query, $path, $filter) Set-Location $path Select-String $query $filter | select Line,FileName,Path
- 15. 參考 http:// msdn.microsoft.com/zh-tw/magazine/cc163430.aspx http:// technet.microsoft.com/zh-tw/library/dd125489.aspx