标签：#cli

Temperatures have climbed up to 45 degrees Fahrenheit above normal, stopping ice from forming in the dead of Antarctic winter.

During my first week at Zone01 Kisumu, I worked on a project called go-reloaded . It was my first real hands-on experience using Go, and it helped me understand not just the language, but also how to think like a developer. In this article, I’ll share what I learned, the challenges I faced, and the key concepts that made everything click. What the Project Was About The goal of the project was to build a small Go program that works with command-line arguments and processes input using Go’s standard libraries. This was my first time interacting deeply with: os package command-line arguments (os.Args) basic Go program structure At first, it felt confusing, but step by step, things started to make sense. What I Learned How command-line arguments work in Go I learned that Go provides access to raw input from the terminal using: os.Args This returns a slice of strings where: os.Args[0] is the program name os.Args[1:] are the actual inputs Working with the os package The os package became one of the most important parts of the project. I used it to: Read input arguments Handle program execution flow Understand how programs interact with the system This helped me realize that Go is very close to the system level compared to JavaScript. Breaking problems into smaller steps One of the biggest lessons wasn’t about code—it was about thinking. Instead of trying to solve everything at once, I learned to: Understand the problem first Break it into smaller tasks Solve each part step by step This made debugging much easier. Challenges I Faced At the beginning, I struggled with: Understanding how os.Args works Knowing where to start in the code Handling errors when inputs were missing Sometimes I would get stuck just trying to figure out what the program was actually receiving. But debugging helped me a lot. Printing values at each step made things clearer. Key Takeaways Go is very explicit compared to JavaScript The os package is powerful for system-level interaction Command-line ar

Jim Franke pulls away the cover page of a presentation on the wraparound desk in his office, revealing an illustration of an odd-­looking aircraft with massive wings stretching out from a stubby fuselage. The uncrewed plane is soaring thousands of meters higher than commercial jets fly—so high you can see the curvature of the Earth.…

Most of Kenya’s power grid runs on renewables. But with 25% of communities lacking centralized electricity, the nation is looking to off-grid solar to hit its goal of delivering universal electricity access by 2030 without driving up emissions. The ever-­improving economics of solar technology have helped. A couple of years ago, a panel cost about…

Time-series data is one of the most common types of data generated by modern applications. Every log entry, API request, metric, transaction, sensor reading, or user interaction is recorded with a timestamp, making time the primary dimension for analysis. As organizations collect billions of these records, efficiently storing and querying them becomes increasingly challenging. This is where ClickHouse® excels. Although ClickHouse is not a dedicated time-series database, its columnar storage architecture, vectorized query execution, high compression ratios, and massively parallel processing make it an excellent choice for time-series analytics at scale. It is capable of ingesting large volumes of data while delivering analytical queries in milliseconds. The article begins by explaining the fundamentals of time-series data and highlighting common real-world use cases such as application monitoring, IoT sensor data, financial market analysis, server metrics, user activity tracking, and business analytics. These workloads typically involve continuous data ingestion, time-based filtering, aggregations, and trend analysis. One of ClickHouse's biggest strengths is its optimization for analytical workloads. Since data is stored column-wise rather than row-wise, only the required columns are read during query execution. Combined with compression and vectorized processing, this significantly reduces I/O and improves query performance over massive datasets. The article also demonstrates how to create an optimized table for time-series workloads using the MergeTree engine. Proper partitioning by month and ordering data by dimensions and timestamps help ClickHouse prune unnecessary partitions and efficiently locate relevant data during queries. Several practical SQL examples are covered, including: Filtering records within a specific time range Aggregating metrics by hour, day, week, or month Calculating averages, sums, minimums, and maximums Grouping events over time Working wi

A pip-installable CLI tool that auto-centers off-center page number annotations created by macOS Preview, or batch-adds new ones — with smart content avoidance and landscape support. The Problem If you've ever used macOS Preview to add page numbers to a PDF (via the text annotation tool), you know the pain: numbers land wherever you drop them, never centered, and manually positioning dozens or hundreds of them is soul-crushing. Especially when the PDF has mixed portrait and landscape pages. I ran into this preparing a thesis — 200+ pages of final manuscript, page numbers visibly off-center on every single page. Editing each one by hand wasn't an option. The Solution pdf-pagenum is a single CLI command that reads a folder of PDFs and centers every page number annotation to the bottom of its page. It works by: Detecting FreeText annotations that look like page numbers Measuring body content boundaries on each page Repositioning the annotation to a clean, centered position below the content — with proper margins Preserving the original page dimensions (no resizing, ever) If your PDF has pages with no annotations at all, it can generate new page numbers from scratch in the correct position. Install pip install pdf-pagenum That's it. PyMuPDF and natsort come along as dependencies. Usage Fix Mode (default) Reposition existing page number annotations so they're centered at the bottom: pdf-pagenum ./scans/ ./output/ This is the mode you'll use 90% of the time — it takes whatever rough page numbers Preview gave you and snaps them to the mathematically correct center. Add Mode Generate brand-new page numbers on pages that lack them: # Number all pages starting from 1 pdf-pagenum ./scans/ ./output/ --add all # Number pages 3 through 7 only pdf-pagenum ./scans/ ./output/ --add 3-7 # Number specific pages, starting count from 10 pdf-pagenum ./scans/ ./output/ --add 1,3,5-7 --start 10 Ranges and comma-separated lists can be mixed freely. Start Offset The --start N flag works in b

Every project I touch lately ends up needing the same awkward thing: a reliable way to pull the web into a script or an agent. Not a brittle scrape held together with CSS selectors and hope, but something that takes a URL and hands back clean, structured text I can actually pipe into the next step. I have built that wrapper more than once, and it is never as small as you think it will be. So when Mozilla dropped the tabstack CLI, a single Go binary that wraps the Tabstack AI API, I wanted to spend a proper afternoon with it. The pitch on the README is direct: every web interaction your agent or stack needs, from the terminal or a script. It turns any URL into clean Markdown or schema-shaped JSON, runs natural-language browser automation, and answers research questions with cited sources. The part that made me sit up is that the output is pretty in a terminal and pipeable into jq without a flag. That is a small detail, and it tells you the people who built it actually live on the command line. Let me walk you through it the way I poked at it myself. Getting it installed There is no runtime to install and nothing to bootstrap, because it ships as a single static binary built for macOS, Linux, and Windows. The quickest route is the install script: curl -fsSL https://tabstack.ai/install.sh | sh That fetches the right binary for your platform and puts it on your PATH , and you are ready to go. If you would rather not pipe a script into your shell, there are a couple of alternatives. With Go on your machine you can use: go install github.com/Mozilla-Ocho/tabstack-cli/cmd/tabstack@latest That drops the binary in $GOPATH/bin , which is usually ~/go/bin . If your shell cannot find tabstack afterwards, you almost certainly have not got that directory on your PATH : export PATH = " $HOME /go/bin: $PATH " And if you want to avoid Go entirely, there are pre-built binaries on the Releases page, or you can clone the repo and run make install-local , which builds it and copies it t

Warm weather has fueled a bloom that National Park Service workers are trying to kill using everything from hydrogen peroxide to nanobubbles ahead of July 4 celebrations.

The Justice department says the Pentagon needs xAI to keep using its unpermitted gas turbines.

A new, AI-assisted model of insurance is quietly exploding in disaster-prone areas—and may be coming for FEMA too. Is it the answer to climate change, or a trap?

The global editorial directors of WIRED and Architectural Digest on teaming up to help you understand how we live today, and what comes next.

Instead of heating metals, Foundation Alloy beats them into submission. The startup has raised $22 million to scale up production of its alloys.

This week's Java roundup for June 8th, 2026, features news highlighting: the GA release of A2A Java SDK 1.0; an update on Jakarta EE 12; point releases of Micrometer Metrics and Micrometer Tracing; maintenance releases of GraalVM Native Build Tools and OpenXava; the second release candidate of Gradle 9.6; and the first milestone release of Eclipse JNoSQL 1.2. By Michael Redlich

GitHub Copilot CLI for Beginners: Learn how to use slash commands to control your terminal AI agent. The post GitHub Copilot CLI for Beginners: Overview of common slash commands appeared first on The GitHub Blog .

Vos tests API passent en local. Le vrai enjeu est de les exécuter automatiquement à chaque pull request, fusion et build nocturne, sans clic manuel. Pour cela, vous avez besoin d’un exécuteur CLI : il lance vos tests en mode headless, retourne un code de sortie exploitable par la CI et génère un rapport lisible par votre pipeline. Essayez Apidog aujourd'hui Deux outils reviennent souvent pour ce cas d’usage : le CLI Bruno et le CLI Apidog . Les deux exécutent des tests API depuis GitHub Actions, GitLab CI, Jenkins ou tout environnement Node.js. Les deux font échouer la build lorsqu’un test échoue. La différence principale se situe avant l’exécution : où vivent les tests, comment ils sont créés et comment la CI y accède. Cet article compare les deux outils au niveau commande, avec des exemples directement intégrables dans un pipeline. En bref CLI Bruno ( @usebruno/cli , binaire bru ) exécute des fichiers .bru présents dans votre dépôt Git. Il est open source, fonctionne hors ligne et ne nécessite ni compte ni jeton. CLI Apidog ( apidog-cli , binaire apidog ) exécute des scénarios de test créés visuellement dans Apidog, récupérés par ID avec un jeton d’accès. Les deux génèrent des rapports JUnit, JSON et HTML. Les deux retournent un code non nul en cas d’échec, ce qui permet à la CI de bloquer une fusion ou un déploiement. Choisissez Bruno si vous voulez des tests versionnés comme du code, dans le dépôt. Choisissez Apidog si vous voulez créer, chaîner et exécuter des scénarios visuels sans maintenir manuellement des fichiers de test. Le problème : des tests qui existent mais ne tournent pas Un test API lancé manuellement finit souvent par devenir obsolète. Il a été écrit, validé une fois, puis oublié pendant que l’API évoluait. La solution n’est pas seulement d’ajouter plus de tests. Il faut les exécuter automatiquement à chaque changement avec un signal clair : succès ou échec ; rapport exploitable ; code de sortie lisible par la CI. Un exécuteur CLI doit donc rempli

Seus testes de API passam no seu laptop. O que importa é se eles rodam em cada pull request, merge e build noturno sem intervenção humana. Para isso, você precisa de um executor de linha de comando: ele roda os testes em modo headless dentro do pipeline, retorna código de saída correto e gera relatórios que o CI consegue ler. Experimente o Apidog hoje Dois CLIs aparecem com frequência nessa configuração: Bruno CLI e Apidog CLI. Ambos executam testes de API em CI/CD, mas partem de modelos diferentes: Bruno é git-native , offline-first e open source. O CLI executa arquivos .bru versionados no repositório. Apidog é uma plataforma de API completa. O CLI executa cenários visuais criados no aplicativo, buscados por ID. Ambos funcionam em GitHub Actions, GitLab CI, Jenkins e qualquer runner com Node.js. Ambos falham a build quando um teste falha. A diferença principal está em como você cria os testes, onde eles ficam e como o CI os acessa. Em resumo Bruno CLI ( @usebruno/cli , binário bru ) executa arquivos .bru diretamente de uma pasta no seu repositório Git. Apidog CLI ( apidog-cli , binário apidog ) executa cenários de teste visuais do seu projeto Apidog usando um access token . Ambos geram relatórios JUnit, JSON e HTML. Ambos retornam código de saída diferente de zero quando há falha. Use Bruno quando quiser testes em texto simples, versionados no repositório, sem conta e sem dependência de rede. Use Apidog quando quiser criar cenários visualmente, encadear requisições, reutilizar ambientes e rodar testes data-driven sem manter código de teste manualmente. O problema: testes que existem, mas não rodam Um teste executado só manualmente tende a ficar desatualizado. A API muda, o teste continua parado e ninguém percebe até quebrar algo em produção. O objetivo do CLI é transformar esses testes em um gate automatizado: Rodar sem interface gráfica. Retornar erro quando uma asserção falhar. Gerar relatório para o CI. Permitir execução por ambiente, pasta, cenário ou tag. Func

After three years of record-­breaking heat, this one is set to be yet another scorcher. Air-conditioning? Not going anywhere. The International Energy Agency projects that the number of AC units will triple by 2050. That’s good for health—one Lancet study estimated that AC prevented nearly 200,000 premature deaths in 2019 alone—but bad for the planet.…

The earlier posts in this series were about what the gateway lets you call (cache-aware spawning across five providers, the Codex review gate, the CLI-versus-API argument) and the one before this was about the parts that do not show up as a tool, the upstream-tracking and the website that became the project's front door. This one is about a different kind of front door: the gateway can now listen over HTTP, behind real authentication, and serve more than one caller without those callers being able to read each other's work. That sounds like a small toggle. It is not. Moving an MCP server off a local pipe and onto a network port changes the trust boundary completely, and 2.9.0 is the release where I sat down and remediated all seventeen findings from a multi-LLM red-team of exactly that surface before telling anyone the remote path was ready. Short version: llm-cli-gateway is one Model Context Protocol server that wraps five vendor CLIs (Claude Code 2.1.177, Codex 0.139.0, Google's Antigravity agy 1.0.8, Grok 0.2.51, and Mistral Vibe 2.14.1) behind a single, uniform tool surface, so one orchestrating agent can fan a task out to several models, collect independent opinions, run a red-team or a consensus check, and keep durable session and job state across all of it. Until recently that only made sense on localhost over stdio. As of 2.9.0 the same server runs over HTTP with a static bearer token or a built-in OAuth 2.0 authorisation server (PKCE on by default, an opt-in human-consent gate, and a trusted-principal-header seam for when you front it with your own identity-aware proxy), every session and job and stored request is stamped with an owner principal and access is enforced per principal, remote provider calls are refused unless a workspace is registered, and the whole thing fails closed rather than open when the configuration is dangerous. Long version is below, same shape as always: what it enables, what the remote options actually are, a stack of worked scenar

One thing that confused me when I first started learning ClickHouse was the word FINAL . Because eventually you'll come across both: SELECT * FROM events FINAL ; and: OPTIMIZE TABLE events FINAL ; At first glance, they sound like they should do roughly the same thing. After all, both contain the word FINAL . But they actually solve two completely different problems. One affects query results. The other affects how data is physically stored. Understanding this distinction can save a lot of confusion when working with MergeTree tables. Why This Confusion Happens Most people encounter FINAL while working with engines like: ReplacingMergeTree SummingMergeTree AggregatingMergeTree Sooner or later they notice something like: SELECT * FROM users ; returns duplicate versions of rows. Then they discover: SELECT * FROM users FINAL ; and suddenly the results look correct. Naturally, many people assume: FINAL merges the table. But that's not exactly what is happening. What SELECT FINAL Actually Does When you run: SELECT * FROM users FINAL ; ClickHouse applies merge logic during query execution. Think of it as: "Show me what the table would look like if all relevant merges had already happened." The important part: It only affects the query result. After the query finishes: parts remain unchanged storage remains unchanged nothing is rewritten on disk The merge logic happens temporarily while the query is running. Once the query completes, the table is exactly as it was before. What OPTIMIZE FINAL Actually Does Now let's look at: OPTIMIZE TABLE users FINAL ; This is a completely different operation. Instead of modifying query results, ClickHouse physically merges parts on disk. The operation: rewrites data merges eligible parts removes obsolete versions creates larger merged parts Unlike SELECT FINAL , the effects remain after the command completes. This is a storage operation, not a query operation. The Simplest Way to Remember It Whenever I think about these commands, I use a v

Better orchestration, fewer handoffs, faster progress, without a single new knob. The post How we made GitHub Copilot CLI more selective about delegation appeared first on The GitHub Blog .