jimdiroffii
/ lowercase-rename.sh
Created
April 16, 2025 17:21
Rename all files in a directory to its lowercase equivalent, skip if a duplicate filename already exists
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| #!/usr/bin/env bash | |
| # Just comment this out to run the script within the target directory. | |
| cd /mnt/example || exit 1 | |
| for f in *; do | |
| lower="$(echo "$f" | tr '[:upper:]' '[:lower:]')" | |
| if [[ "$f" != "$lower" ]]; then | |
| if [[ -e "$lower" ]]; then |
jimdiroffii
/ update-links.sh
Created
April 17, 2025 17:29
Find all symlinks and change their link path
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| #!/bin/bash | |
| # update `/search/path/dir`, `/old/link/path`, and `/new/link/path` | |
| find /search/path/dir -type l | while read link; do | |
| target=$(readlink "$link") | |
| if [[ "$target" == "/old/link/path"* ]]; then | |
| suffix="${target#/old/link/path}" | |
| newtarget="/new/link/path$suffix" | |
| echo "Updating: $link -> $newtarget" | |
jimdiroffii
/ wheelhouse.sh
Last active
April 18, 2025 04:53
Maintain a Python wheelhouse across different machines. I'm using this for VM data disks, where the VM is only used on one host at a time, and the data disk is transferred between hosts.
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| #!/bin/bash | |
| set -euo pipefail | |
| IFS=$'\n\t' | |
| # Path to the data disk | |
| DATA_DISK="/mnt/data" | |
| WHEELHOUSE_PATH="$DATA_DISK/wheelhouse" | |
| PIP_CONF_PATH="$DATA_DISK/pip/pip.conf" | |
| mountpoint -q "$DATA_DISK" || { echo "Error: $DATA_DISK not mounted"; exit 1; } |
jimdiroffii
/ MercuryViewingScript-Miami.ssc
Created
April 18, 2025 01:57
A Stellarium script for finding the best date and time for viewing Mercury. The script tries to find when Mercury will be at least 5 degrees above the horizon, at least 0.0 magnitude, and within an hour of sunset or sunrise. The script is centered on Miami, Florida, and set to check for specific dates. Most variables need adjustment to work.
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| ////////////////////////////////////////////////////////////////////////////// | |
| // Stellarium Script: Mercury Twilight Search | |
| // Date Range: Feb 10, 2025 – Apr 30, 2025 | |
| // Time Step: 5 minutes | |
| // Location: Miami (lat: 25.7617, lon: -80.1918), ignoring DST complexities. | |
| ////////////////////////////////////////////////////////////////////////////// | |
| // ------------------------ USER CONFIGURATION ------------------------ | |
| // Observing location |
jimdiroffii
/ replaceJPGwithAVIF.js
Last active
August 6, 2025 01:57
How to enable JPG fallback for any AVIF image on your website
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| /* SOURCE: https://gregbenzphotography.com/photoshop/photoshop-now-natively-supports-avif-for-50-smaller-files-than-jpg/ | |
| REVISED with corrections and error handling. | |
| */ | |
| function replaceAvifImagesWithPicture() { | |
| const logToConsole = true; | |
| if (logToConsole) console.log("replaceAvifImagesWithPicture()"); | |
| // Select all <img> elements with a .avif source that haven't been processed yet. | |
| // We check that its parent is NOT a <picture> element. |
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| data = ["1.2.3.4", "1.1.1.1"] | |
| data.sort(key=lambda ip: [int(part) for part in ip.split('.')]) |
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| #!/bin/bash | |
| # The directory containing your git repositories, passed as the first argument. | |
| PARENT_DIR="$1" | |
| # Check if a directory was provided. | |
| if [ -z "$PARENT_DIR" ]; then | |
| echo "❌ Error: No directory supplied." | |
| echo "Usage: $0 <path/to/your/repos>" | |
| exit 1 |
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| #!/bin/bash | |
| # The directory containing your git repositories, passed as the first argument. | |
| PARENT_DIR="$1" | |
| # Check if a directory was provided. | |
| if [ -z "$PARENT_DIR" ]; then | |
| echo "❌ Error: No directory supplied." | |
| echo "Usage: $0 <path/to/your/repos>" | |
| exit 1 |
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