Technical Guide Logs as Evidence — Four Principles for Preserving, Excerpting, and Proving Integrity
The reboot cost thirty-eight minutes of log. Fixing it was right. What should you have taken with you first? L…
Technical Guide 
Comparison grep -w Joins the GUI — Whole-Word Match Picks 7 Rows out of 892 Million
Last time it was grep -v (the NOT filter). Part 2 of the CLI series: grep -w — whole-word match. Substring sea…
Technical Guide “less Is Enough” — Until It Isn’t: Four Limits of Command-Line Craft
[Update, 16 October 2026] Speed today — the first question is still on par; the gap opens from the second ques…
Comparison I Put grep -v into a GUI — Stackable NOT Filters in Drill-Down Search, from 10,967 Hits to 16
The reality of log investigation is less about finding and more about discarding. Search for ERROR, get tens o…
Comparison Before You Give Up and Import 100 Million Lines into a Database — Field Fixes and Benchmarks for Incident Logs and AI Preprocessing
"Just import this multi-gigabyte file into a database, or split it up." For steady-state operations, that is t…
Comparison How to Open and Search a 50GB Log File on a 16GB PC
[Update, 16 October 2026] Speed today — the gap from the second search on is wider than before; the first sear…
Technical Guide The Traces Are in the Raw Log — Four Views on Lateral Movement, SQLi, and After-the-Fact Investigation
The encryption took eleven minutes. What matters is the six days before it. Which log do you read first, and i…
Comparison Search and Replace Only — EmEditor, klogg, grep, 010 Editor and UltraEdit at 3/10/48 GB, Windows and Mac Kept Separate
The AI grade sheet gave letter grades. This time I extract just two steps — search and replace — and put the a…
Technical Guide Only the Line Number Survived — Four Techniques for Inspecting Huge Data
It died at line 8,342,119. That is the entire lead. The file is 12 GB and the migration sign-off is the day af…
Comparison [AI Grades S–C] I Fed 10 of My Own Benchmark Posts to Gemini and ChatGPT — They Both Drew the Same Map, by File Size
So far I have been the one asking AIs about 50 GB logs. This time I reversed it: I handed Gemini and ChatGPT a…