Focus Stacking with Lightroom and Photoshop
Not the usual topic for this blog and not the most comprehensive guide on the subject out there, but here I go anyway. Focus stacking combines multiple photos taken at different focal distances into an image of greater depth of field.
Peculiar Linux Command-Line Tools
Some Linux CLI commands I type every day, probably hundreds of times. Others - on a rare occasion. But there's a category of truly esoteric utilities tailor-made for some singular and often exotic purpose. I heard of many - if not most - of these utilities, but it's difficult to…Read More
NFS I/O Stats with Logging
The nfsiostat is an excellent tool for analyzing NFS performance. The only major problem with this utility is that it's designed to be used interactively. It does not have logging or timestamping capabilities. I needed to get information about NFS mount performance during a nightly backup, and I didn't really…Read More
Inventorying NFS Mounts and Mount Options
As time goes by, NFS mounts multiply like rabbits. Added by many different people over the years, these entries present a dizzying variety of mount options - most are a copy-paste job that makes little sense. All this variety inevitably results in performance issues that are difficult to pin down.
Joining Text Files and Data Columns
When working with application logs and other text files, it is often useful to view the contents of different source files side-by-side. Here we will take a quick look at various command-line methods for joining data columns from different files.
Identify Overused Words
The issue of overused words is a tricky one. For me, the problem occurs when I revisit my writing a few days later and make a few edits. I may find a word I would like to replace with a better match, forgetting that the same word was already used…Read More
Automating Web Page Screenshots
Automatic Web page screenshots are commonly used for various monitoring tasks, such as detecting copyright infringement, website defacement, and other legal and security matters. Automatic screenshotting can also be a useful tool for researchers, developers, and journalists. There are free and open-source tools out there that can help you automate…Read More
Working with SD Cards for Photographers
What do I recall from my extensive overland trips in the past few years? Not much, to be honest. It was just a blur of driving, looking for gas stations, trying to reserve camping spots or motel rooms, and - yes - joggling camera batteries and SD cards. But I…Read More
Relocating Ollama Models Folder in Windows
Ollama for Windows is still at the pre-prod stage at the time of this writing, so there are some known (and definitely lots of unknown) bugs. One issue I ran into was the size of the "models" folder and how to move it to another disk.
Cutting Videos Into Smaller Segments
Sometimes, I need to post longer videos on social media that are limited to a few minutes in duration. Manually splitting a longer video into segments is for amateurs.
Compile ffmpeg From Source
Recently, I needed to use ffmpeg to stabilize some videos made with my iPhone, and the damned utility was giving me grief about missing VidStab support.
Convert Color Text to Images in Bash
The textmg is a cool little CLI tool written by jiro4989 - a systems engineer from Japan - that allows you to convert the color output in a terminal window to an image file. I find this very useful when sharing code snippets on social media and when writing documentation.
The Future of Spaghetti Code
In his new book “The Future of Work: Robotics, AI, and Automation"1, Darrell West of the Brookings Institution makes some very extravagant predictions. Here's a short but entirely sufficient summary from the book's presentation by Brennan Hoban:
AWS CLI Cheat Sheet
The installation and configuration process for AWS CLI is fairly simple. The package itself is installed with pip (yum -y install python-pip):
Copying X11 Magic Cookies
I rarely use GUIs, but when I do, it's from CLI and every time I run into the annoying MIT-MAGIC-COOKIE-1 data did not match error. It's easy to fix, but it happens to me so rarely that between the fixes I forget how I did it.
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