Snippets

1 yr. ago

Expand scrollable elements

CSS

Make all elements fully visible by removing scroll, position and height limits for screenshots.

height

overflow

position

screenshot

scroll

* {
    overflow: visible !important;
    height: auto !important;
    max-height: none !important;
    position: static !important;
}

1 yr. ago

Responsive grid columns

CSS

Responsive, equally sized grid columns that wrap for mobile.

grid

.el {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(300px, 100%), 1fr));
    gap: 20px;
}

1 yr. ago

Responsive table

CSS

HTML

Responsive table that stacks on mobile.

table

Styles
Markup

@media (max-width: 800px) {
    .table-vertical tbody tr {
        display: flex;
        flex-direction: column;
        padding-top: calc(0.25rem + 8px);
        border-bottom: 1px solid #eee;
    }
    .table-vertical tbody tr td:nth-of-type(1) {
        width: fit-content;
        margin-bottom: 0.5rem;
        padding: 0.25rem 0.5rem;
        background-color: rgba(138, 110, 75, 0.2);
        font-size: 16px;
        border-radius: 0 5px 5px 0;
    }
    .table-vertical tbody tr td:nth-of-type(2) {
        padding-left: 0.5rem;
        font-weight: bold;
        border-top: none;
    }
}

12 mo. ago

Add user to group

Shell

Manage user group membership and permissions to ensure proper access control over directories and files.

chmod

chown

permissions

usermod

usermod
chown
group permissions
setgid

# Add user to primary_group
sudo usermod -aG primary_group user

1 yr. ago

Add title attribute to link

Shell

Regex pattern to add link text to title attribute.

regex

url

Pattern
Replacement

# Find all <a> tags and capture href and text into groups 1, 2
# $1 is ([^"]+) matches any character except "
# $2 is ([^<]+) matches any character except <
<a\s+href="([^"]+)"[^>]*>([^<]+)</a>

1 yr. ago

Batch resize images

Shell

Batch resize and center images to a specific dimension.

batch

image

imagemagick

magick

# cd to directory with images
# adjust size as necessary 1427x803 (resize, extent)
# change output directory: ~/Downloads/output/"$file"
for file in *.jpg; do
  magick "$file" -gravity center -resize '1427x803^' -extent 1427x803 ~/Downloads/output/"$file"
done

1 yr. ago

Compress multiple videos script

Shell

A script to compress all videos in a directory using ffmpeg.

ffmpeg

script

Shell script
Commands

_#!/bin/bash

# Default values
vcodec="libx265"
acodec="aac"
abitrate="128k"
output_format="mkv"
crf=28
preset="medium"

# Dynamic video tag variable
if [[ "$vcodec" == "libx265" ]]; then
  video_tag="-tag:v hvc1"
elif [[ "$vcodec" == "libx264" ]]; then
  video_tag="-tag:v avc1"
else
  video_tag=""
fi

# Function to show usage
usage() {
echo "Usage: $0 [options]"
echo "Options:"
echo "  --vcodec [libx264|libx265]   Video codec (default: libx265)"
echo "  --acodec [aac|mp3]           Audio codec (default: aac)"
echo "  --abitrate [128k|192k]       Audio bitrate (default: 128k)"
echo "  --output-format [mp4|mkv]    Output format (default: mkv)"
echo "  --crf [value]                Constant Rate Factor (default: 28)"
echo "  --preset [preset]            Encoding preset (default: medium)"
echo "  --help                       Show this help message"
exit 1
}

# Parse command-line arguments
while [[ $# -gt 0 ]]; do
case "$1" in
    --vcodec)
    vcodec="$2"
    shift 2
    ;;
    --acodec)
    acodec="$2"
    shift 2
    ;;
    --abitrate)
    abitrate="$2"
    shift 2
    ;;
    --output-format)
    output_format="$2"
    shift 2
    ;;
    --crf)
    crf="$2"
    shift 2
    ;;
    --preset)
    preset="$2"
    shift 2
    ;;
    --help)
    usage
    ;;
    *)
    echo "Unknown option: $1"
    usage
    ;;
esac
done

# Create the output directory if it doesn't exist
mkdir -p output

# Process video files
for file in *.{mp4,mov,avi,mkv}; do
# Skip if no files are found
[ ! -e "$file" ] && continue

# Get creation date from metadata
timestamp=$(ffprobe -v quiet -select_streams v:0 -show_entries format_tags=creation_time -of default=noprint_wrappers=1:nokey=1 "$file")

# Format the timestamp to your desired format YYYY-MM-DD-HH-MM-SS
formatted_timestamp=$(date -j -f "%Y-%m-%dT%H:%M:%S" "${timestamp%.*}" "+%Y-%m-%d-%H-%M-%S" 2>/dev/null)

# If the timestamp is empty, use the current time instead
[ -z "$formatted_timestamp" ] && formatted_timestamp=$(date "+%Y-%m-%d-%H-%M-%S")

# Compress the video
ffmpeg -i "$file" -vcodec "$vcodec" -crf "$crf" -preset "$preset" -c:a aac "$acodec" -b:a "$abitrate" "$video_tag" "output/${formatted_timestamp}.${output_format}"
done

11 mo. ago

Compress video

Shell

Compress a video using the H.265 (HEVC) codec for a balance of quality and size.

compression

ffmpeg

# Input: input.mp4
# Video codec: x265 (HEVC)
# CRF: 28 (default), recommended range 18-28
# Encoding preset: medium (default), faster|fast|medium|slow|slower, etc.
# Audio codec: aac
# Audio bitrate: 128k (default), 96k|128k|192k|320k
# Video tag: hvc1, can help with compatibility issues
# Output: output.mp4
ffmpeg -i input.mp4 -vcodec libx265 -crf 28 -preset medium -c:a aac -b:a 128k -tag:v hvc1 -metadata creation_time="2024-05-12T14:33:00Z" output.mp4

12 mo. ago

Extract screenshot from videos

Shell

Extract screenshot from videos at a specific timestamp using ffmpeg.

ffmpeg

processing

screenshot

for f in *.mp4; do ffmpeg -ss 5 -i "$f" -frames:v 1 "${f%.mp4}.jpg"; done

12 mo. ago

Find directories by name

Shell

Search for directories matching a specific name pattern across the entire filesystem.

directories

find

# change nix for search term
sudo find / -type d -iname '*nix*' 2>/dev/null

2 mo. ago

Find largest files

Shell

List the largest files in a directory with optional limits.

filesystem

find

head

Function
Example

largest_files() {
  local search_dir="${1:-.}"
  local num_results="${2:-10}"
  echo "Searching in: $search_dir for the top $num_results files..."
  /usr/bin/find "$search_dir" -type f -exec /usr/bin/du -ah {} + 2>/dev/null | /usr/bin/sort -rh | /usr/bin/head -n "$num_results"
}

11 mo. ago

Lighten video

Shell

Use ffmpeg to boost brightness and reduce flickering in dark or shadowy videos using frame interpolation and EQ filters.

brightness

ffmpeg

flickering

shadows

ffmpeg -i input.mp4 -vf "minterpolate=fps=30:mi_mode=mci:mc_mode=aobmc:vsbmc=1,eq=brightness=0.03" -c:a copy output.mp4

1 yr. ago

Monoscopic 360° to stereoscopic 180° video

Shell

Use FFmpeg to transform a monoscopic 360° video into a side-by-side stereoscopic 180° VR format.

ffmpeg

# change input file: input_360.mp4
# Use HEVC (H.265) for better compression: -c:v libx265
# Increase bitrate for better quality: -b:v 20M
ffmpeg -i input_360.mp4 -filter_complex "
[0:v]v360=input=equirect:output=fisheye:h_fov=180:v_fov=180:yaw=-45[left];
[0:v]v360=input=equirect:output=fisheye:h_fov=180:v_fov=180:yaw=45[right];
[left][right]hstack" -c:v libx264 -crf 18 -preset slow -pix_fmt yuv420p output_vr180.mp4

2 mo. ago

Force quit app

Shell

Kill a running application process from the command line using pkill.

pkill

pkill -f "/Applications/Google Chrome.app"

1 yr. ago

Paste to file over ssh

Shell

Quickly paste clipboard content into a remote file over ssh using pbpaste and cat.

cat

pbpaste

ssh

# Content must be on your clipboard before executing
pbpaste | ssh USERNAME@IP_ADDRESS 'cat > /path/to/file/compose.yml'

12 mo. ago

Rsync local and remote examples

Shell

Text

Learn how to sync files between drives or remote systems using rsync.

backup

file sync

rsync

Local
Remote
Exclude list

rsync -av --progress --delete-before --exclude-from="exclude-list.txt" /path/to/HDD1 /path/to/HDD2

11 mo. ago

Outlook group to CSV

Javascript

Parses a semicolon-separated string of contact entries from an expanded Outlook distribution list into a CSV format.

csv

parser

import fs from "fs";

const input = `Abercrombie, Clarence L. <AbercrombieCL@email.com>; Abushawish, Maysaa Z <abushawishmz@email.com>; Adams, Benjamin <adamsbj@email.com>; Anderson, A.K. <AndersonAK@email.com>; Bond, Sr., Jamie <bondje@email.com>; Castilla Candil, Luis <castillacandillm@email.com>; Castillo-Bernal, Melba <castillobernalmd@email.com>; Chang, Shun-Yao <changs@email.com>; Chou, Yi Jou <chouy@email.com>; Crouse, Sr, Jake W. <crousejw@email.com>; Richards, Jr., Robert C <RichardsRC1@email.com>`;

function parseOutlookGroupToCsv() {
  const lines = input
    .split(";")
    .map((entry) => entry.trim())
    .filter(Boolean)
    .map((entry) => entry.replace(/\b(Jr\.?|Sr\.?|II|III|IV|V),?/gi, "").trim())
    .map((entry) => {
      const match = entry.match(/^(.*?),\s*(.*?)\s*<([^>]+)>$/);
      if (!match) return null;

      let [_, lastName, firstPart, email] = match;
      if (/test/i.test(email)) return null;

      let nameParts = firstPart.split(/\s+/);

      if (nameParts.every((p) => /^[A-Z](\.?)$/.test(p))) {
        return `${lastName},${nameParts.join(" ")},${email}`;
      }

      nameParts = nameParts.filter((p) => !/^[A-Z]\.?$/.test(p));
      const firstName = nameParts.join(" ");
      return `${lastName},${firstName},${email}`;
    })
    .filter(Boolean);

  return ["lastName,firstName,email", ...lines].join("\n");
}

const csv = parseOutlookGroupToCsv();
fs.writeFileSync("output.csv", csv);

2 mo. ago

Photoshop auto-fit layer

Javascript

Markdown

Instantly resize layer to fit your artboard.

auto-fit

images

layers

photoshop

Script
Action instructions

#target photoshop

var doc = app.activeDocument;
var layer = doc.activeLayer;
var bounds = layer.bounds;

var layerWidth = bounds[2].as('px') - bounds[0].as('px');
var layerHeight = bounds[3].as('px') - bounds[1].as('px');

var scaleW = (doc.width.as('px') / layerWidth) * 100;
var scaleH = (doc.height.as('px') / layerHeight) * 100;

var finalScale = Math.min(scaleW, scaleH);

layer.resize(finalScale, finalScale, AnchorPosition.MIDDLECENTER);
layer.translate(doc.width/2 - (bounds[0] + bounds[2])/2, doc.height/2 - (bounds[1] + bounds[3])/2);

2 mo. ago

Photoshop batch resize images

Javascript

Batch resize images to a specific canvas size, centers them and exports them as a png or jpg.

batch

images

photoshop

#target photoshop
// update these vars below: targetW, targetH
// toggle comment Save as PNG or JPG

(function () {
    // Prompt user to select input folder
    var inputFolder = Folder.selectDialog("Select the folder with images to process:");
    if (!inputFolder) {
        alert("No folder selected. Exiting.");
        return;
    }

    // Prompt user to select output folder
    var outputFolder = Folder.selectDialog("Select the folder to save processed images:");
    if (!outputFolder) {
        alert("No output folder selected. Exiting.");
        return;
    }

    var files = inputFolder.getFiles(/\.(jpg|jpeg|png|tif|tiff|bmp)$/i);
    if (files.length === 0) {
        alert("No image files found in selected folder.");
        return;
    }

    // Set target canvas dimensions
    var targetW = 1500;
    var targetH = 1000;

    for (var i = 0; i < files.length; i++) {
        var file = files[i];
        if (!(file instanceof File)) continue;

        var doc = open(file);
        app.activeDocument = doc;
        doc.changeMode(ChangeMode.RGB);

        // Resize proportionally to fit inside target dimensions
        var w = doc.width.as("px");
        var h = doc.height.as("px");
        var scale = Math.min(targetW / w, targetH / h);
        doc.resizeImage(UnitValue(w * scale, "px"), UnitValue(h * scale, "px"), null, ResampleMethod.BICUBIC);

        // Create transparent canvas
        var tempDoc = app.documents.add(
            targetW, targetH, doc.resolution, "TempCanvas", NewDocumentMode.RGB, DocumentFill.TRANSPARENT
        );

        // Copy/paste from resized image
        app.activeDocument = doc;
        doc.selection.selectAll();
        doc.selection.copy();
        doc.close(SaveOptions.DONOTSAVECHANGES);

        app.activeDocument = tempDoc;
        tempDoc.paste();
        var layer = tempDoc.activeLayer;

        // Center the pasted layer
        var dx = (targetW - (layer.bounds[2].as("px") - layer.bounds[0].as("px"))) / 2 - layer.bounds[0].as("px");
        var dy = (targetH - (layer.bounds[3].as("px") - layer.bounds[1].as("px"))) / 2 - layer.bounds[1].as("px");
        layer.translate(dx, dy);

        // Save as PNG
        var saveFile = new File(outputFolder + "/" + decodeURI(file.name).replace(/\.[^\.]+$/, "") + ".png");
        var pngOptions = new PNGSaveOptions();
        pngOptions.compression = 9;
        pngOptions.interlaced = false;
        tempDoc.saveAs(saveFile, pngOptions, true, Extension.LOWERCASE);

        // Save as JPG
        // var saveFile = new File(outputFolder + "/" + decodeURI(file.name).replace(/\.[^\.]+$/, "") + ".jpg");
        // var jpgOptions = new JPEGSaveOptions();
        // jpgOptions.quality = 12;
        // jpgOptions.formatOptions = FormatOptions.STANDARDBASELINE;
        // jpgOptions.embedColorProfile = true;
        // jpgOptions.matte = MatteType.NONE;
        // tempDoc.saveAs(saveFile, jpgOptions, true, Extension.LOWERCASE);

        tempDoc.close(SaveOptions.DONOTSAVECHANGES);
    }

    alert("Done! Saved " + files.length + " images as " + targetW + "x" + targetH + " to:\n" + outputFolder.fsName);
})();

12 mo. ago

File safe date string

Javascript

Returns a date time string that is safe to use for filenames.

date

filename

utility

// output: 2025-04-04_17-44-19
const getFileSafeDateString = () => {
    const date = new Date();

    const time = date.toLocaleTimeString(undefined, { hour12: false });
    const hour = time.slice(0, 2);

    const utcDate = new Date().toISOString();

    const updatedDateHour = utcDate.replace(/T\d+/, `_${hour}`);
    const formattedDate = updatedDateHour.replace(/:/g, "-");

    return formattedDate.split(".")[0];
}

12 mo. ago

Remove whitespace svg

Javascript

HTML

Paste svg to remove unnecessary whitespace.

cleanup

svg

viewBox

whitespace

Script
Markup

const originalSvg = document.querySelector("#originalSvg");
const newSvg = document.querySelector("#newSvg");

const delay = (ms) => new Promise((resolve) => setTimeout(resolve, ms));

originalSvg.addEventListener("paste", async () => {
    await delay(1);

    const tempContainer = document.createElement("div");
    tempContainer.innerHTML = originalSvg.value;
    document.body.appendChild(tempContainer);

    await delay(1);

    const svg = tempContainer.querySelector("svg");

    if (svg) {
    const { x, y, width, height } = svg.getBBox();
    svg.setAttribute("viewBox", `${x} ${y} ${width} ${height}`);
    newSvg.value = svg.outerHTML;
    }

    tempContainer.remove();
});

12 mo. ago

Scrape links from url

Javascript

Extract text and links from anchor tags and generate HTML in a new window.

links

dom

url

// Refine the selector for a more specific search
const anchors = Array.from(document.querySelectorAll("a"));
const linkData = anchors.map(anchor => {
    const nameText = anchor.textContent?.replace(/\s+/g, " ").trim() || "";
    const cleanLink = anchor.href;
    return [nameText, cleanLink];
}).filter(([name, link]) => name && link);

function makeViews() {
    const list = `<ul>${linkData.map(([name, link]) =>
    `<li><a href="${link}" target="_blank">${name}</a></li>`).join("")}</ul>`;

    const paragraph = linkData.map(([name, link]) =>
    `<p><a href="${link}" target="_blank">${name}</a></p>`).join("");

    const tableRows = linkData.map(([name, link]) =>
    `<tr><td>${name}</td><td><a href="${link}" target="_blank">${link}</a></td></tr>`).join("");

    const table = `
        <table border="1" style="border-collapse: collapse; width: 100%;">
            <thead>
                <tr>
                    <th>Name</th>
                    <th>Links</th>
                </tr>
            </thead>
            <tbody>
                ${tableRows}
            </tbody>
        </table>
    `;

    const newWindow = window.open("");
    if (newWindow) {
        // Change to desired view (list, paragraph, table)
        newWindow.document.body.innerHTML = paragraph;
    }
}

makeViews();