Tag: Linux
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Fixing Zotero Corrupt Database Issue on Linux
I use Zotero to manage my references and have for decades since it was first developed. I’m a huge fan and teach all my students how to use it. But I also don’t follow one of the programmers’ recommendations on where to store my Zotero database. As soon as I install Zotero, I change the…
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Kubuntu 25.04 – Reset Wayland
I just installed Kubuntu 25.04 on my laptop and started running into an issue. It started when I tried to load Spectacle to take a screenshot. Spectacle froze and so did my panel, but I could still hit Alt+F2 to open new programs. I could also use Alt+Tab to switch between non-frozen programs. I couldn’t…
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Changing Default Browser for Links in Thunderbird
I just reformatted my computer (I try to do that about once a year) to Kubuntu 25.04. That meant setting up Thunderbird (version 128.10.0esr) with my email again. I use Firefox as my default browser (because it respects privacy), but install Chromium as a backup for the occasional website that doesn’t work very well with…
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Imputing Missing Data in R – mice
I got a revise and resubmit on a recent paper. We noted that we had some missing data on some of the variables in our dataset. One of the reviewers suggested we address the missing data issue, which I have typically just managed using listwise/casewise deletion (a.k.a. complete-case analysis, which entails not including cases that…
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LibreOffice Calc – Search for Specific Text Across Columns
I have a task I am asked to do fairly regularly that involves searching through a large spreadsheet (around 4,000 rows with about a dozen columns) looking for very specific text. There are, of course, various ways I could accomplish this. But I finally found a solution that speeds this up and want to document…
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Batch Convert MP4 to MKV
I ran into an issue where a number of my MP4 files on my fileserver were stuttering when I tried to play them back using Plex on my TV. After a lot of googling, I found out that this was due to some header information in the MP4 files and that the simple solution was…
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FreeCAD Import STL
I’m not a FreeCAD expert. I bought a 3D printer and am constantly coming up with new ideas for 3D prints to solve issues around my house and office. That required me to begin learning how to use CAD software and, as an open-source advocate, FreeCAD was the obvious choice for CAD. I design most…
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Getting Ollama and Open WebUI Working on Kubuntu 23.10
I have two specific use cases for setting up AI locally instead of using ChatGPT (for which I have a subscription as I use it for a variety of tasks, as does my wife). I needed to analyze interviews but couldn’t upload them to the web for security reasons. I also wanted to work on…
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Converting EPUB to Mp3 on Linux
I read a lot. It’s part of my job. But I also have times when I have to be physically up and about and could listen to an audiobook (e.g., mowing the lawn). I typically listen to podcasts at those times, but I do have some e-books I’d like to listen to that don’t have…
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Linux – Adding BPM to ID3 Tags
I spent the better part of a year (in my spare time) organizing my music collection. With my music carefully organized and accurately tagged, I found myself wanting the Beats Per Minute (BPM) for some of my music and realized that BPM can be included in the ID3 tags of MP3 files or the Vorbis…