Save JSON from a cron job or GitHub Action
Save a JSON result from a scheduled job to a stable URL, then read it from a static page or another script. This guide uses jstash JSON Bins for a s…
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My photo.jpg Was a 29-Byte HTML Page: Validating Downloaded Images Before They Reach Production
We publish a handful of technical articles every day on our company blog, and every article gets two real photographs: a cover and one inline image.…
How I stopped Claude Code from lying about finishing tasks (4 hooks, 150 lines of bash)
Last month Claude Code told me it had added a regression test. The commit landed. The PR merged. Two days later a bug slipped through — the test was…
Ctrl-C won't stop a bash loop if the program inside it catches the signal
Most people have at some point hammered Ctrl-C at a terminal while a shell loop carried on regardless, one iteration after another, and put it down…
A Command That Matched Zero Files Still Exits 0: How to Catch Silent CI Failures
A Command That Matched Zero Files Still Exits 0: How to Catch Silent CI Failures Every engineer has felt the cold dread of pushing a critical fix, w…
Jira 32,767 characters limit: find the description and comment data a JCMA migration lost
Jira 32,767 characters limit: find the description and comment data a JCMA migration lost Key takeaways END STATE: a reviewed JSON plan and a dry-ru…
История одного пулреквеста в DKMS: когда сообщение об ошибке — это баг
Разбираю реальный случай контрибьюции в DKMS (Dynamic Kernel Module Support) — инструмент, который пересобирает сторонние модули ядра врод…
Your OpenCode Model List Is Rotting: ocprobe
Your OpenCode whitelist is a list of promises made by other people's APIs. This is about the small bash tool I wrote to check them — and one bug in…
Nightly backups with rsync hard links: three snapshots cost 1.4 MB where copies would cost 3.5 MB
Disclosure first I sell the five-line core of this post for $4 as snapshot.sh , part of DevToolkit ( https://payhip.com/b/aEn8M ), so I am not neutr…
Batch resize images on a stock Mac: sips writes seven formats and refuses WebP
Disclosure first I sell the script quoted in the second half of this post for $4 (DevToolkit, https://payhip.com/b/aEn8M ), so I am not neutral abou…
Директ Коммандер на Linux: Работа над ошибками
Неделю назад я выложил статью про то, как запустил Директ Коммандер на Linux . А через пару дней выяснил, что половину той инструкции можно выкинуть…
Мониторинг SSL сертификатов в Zabbix
Возможно, ты гений автоматизации и у тебя все продлевается автоматически, а ты просто попиваешь кофе и наблюдаешь за тем, как ра…
Learning Notes
Note: These are my learning notes from my current phase. I am keeping them as I wrote them so I can look back and see my progress. watched a 1 hour…
How to Automate Git Add, Commit, and Push with a Bash Script
How to Automate Git Add, Commit, and Push with a Bash Script I automated one of the repetitive tasks in my development workflow. While working on a…
Termai - Created a Simple AI agent in Bash
No Python. No Node. Just Bash and jq. an AI assistant that runs in your terminal, chats with an LLM, and can search the web, check the weather, fetc…
Get your public IP, VPN/proxy status and risk score with one curl command
Most "what's my IP" sites are built for browsers. Call them from a script and you get a full HTML page back, or you're asked to sign up for an API k…
Свой VLESS-прокси бесплатно одной командой: Xray + XHTTP на Alwaysdata
Мне был нужен свой прокси за границей, но платить за VPS ради него не хотелось. Бесплатные варианты быстро кончились. Oracle Cloud просит иностранну…
4 Days, 3 Wasted Calls Per Run: My Retry Loop Mistook a Quota-Limit Message for a 'Too Short' Article
Last time I wrote about using a probe to decide which jobs to stop first when the quota runs dry . This post is about the problem sitting right next…
The day a script needs changing everywhere
At a previous employer I went looking for a shell script and found eleven of it. Not eleven copies, but eleven variants, each one someone's improvem…
One Line of mv Kills the 4x Duplicate Run After Recovery: Making launchd Queue Processing Idempotent
Six months ago my side business made ¥0 a month. This month it's ¥1.2M, running on an autonomous setup built with Claude Code. And here's the thing…
Why Claude Code keeps writing shell commands that fail on your Mac
Disclaimer: AI helped me write this since I am not that good with words :) Claude wrote this, mid-task, while refactoring something unrelated: sed -…
3 Weeks of Silent Failure: How One Missing `--model` Flag Drained My Interactive Quota Across 4 Jobs
I went from ¥100k a month as a student to ¥600k juggling side gigs, then to ¥0 after a layoff—and six months of building an autonomous Claude Code e…
The shell one-liners everyone pastes but nobody explains
You copy a command from a Stack Overflow answer, a blog post, or an AI assistant. It has six stacked flags. It works. You move on — without ever rea…
bashy: a pure-Go Bash 5.3 that runs on Windows and rebuilds itself from the downloaded binary
I've been building a Bash 5.3 in pure Go — no CGo, one static binary — on top of mvdan/sh , mostly so the same scripts run on Windows. It passes all…
Alt-g and Readline shortcuts that make Bash completion a bit more convenient
Let's say you're using Bash and you have a directory like this: $ ls aaa-bbb-ccc You want to move to this directory, but you only remember bbb in th…
Wi-Fi Was Dead for 5 Hours While Chrome Kept Working: 4,960 DNS Failures and the 5-Minute Probe That Catches Them
Last time I wrote about how many jobs you should re-run the moment your quota comes back . This post goes back a few days earlier, to a quieter and…
Turn Your Android Phone Into a Local Development Server With Termux
You don't always need a computer to test a website or run a small development project. With Termux , your Android phone can run a local development…
For Months My Dev Server Came Up on 3001. Tonight I Found Out Who Had 3000.
A listener nobody remembered starting held port 3000 on my own machine since spring. One ss flag named the owner without root — and showed why 'list…
Never Name a zsh Loop Variable path: Three Deploy-Verification Traps That Looked Like Outages
In one day of post-deploy verification I hit three failures that all looked like "production is broken" and none of which were: zsh's tied path arra…
Nightmare on Linux ST
canonical_url: https://theprettyrejectsguidetotechnology.blogspot.com/2026/08/nightmare-on-linux-st.html A quick one from my ongoing series on what…