stekern

Keybase proof

I hereby claim:

• I am stekern on github.
• I am ekern (https://keybase.io/ekern) on keybase.
• I have a public key ASCIEXlhT9VjmD39jqYGgQSakoSM1yZoYUJ2JenmRPF-rQo

To claim this, I am signing this object:

stekern

# Creates a 20-second video with a scrolling text overlay.
# The image is named 'input.png', and the textfile it reads from is called 'yourfile.txt'.

# Create a video of the image
ffmpeg -loop 1 -t 20 -i input.png output.mp4

# Add scrolling text to the video
ffmpeg -i output.mp4 -filter_complex \
"[0]split[txt][orig];[txt]drawtext=fontfile=tahoma.ttf:fontsize=55:fontcolor=white:x=(w-text_w)/2+20:y=h-20*t:textfile='yourfile.txt':bordercolor=black:line_spacing=20:borderw=3[txt];[orig]crop=iw:50:0:0[orig];[txt][orig]overlay" \
-c:v libx264 -y -preset ultrafast -t 20 output_scrolling.mp4

stekern

/* Firefox > Tree Style Tab > Manage Extension > Advanced > "Extra style rules for sidebar contents" */

/* Show title of unread tabs with red and italic font */
.tab.unread .label {
  color: red !important;
  font-style: italic !important;
}

/* Add private browsing indicator per tab */
.tab.private-browsing .label:before {

stekern

// This script will calculate your GPA according to your grades on StudentWeb.
// 1. Go to https://fsweb.no/studentweb/resultater.jsf
// 2. Open up your browser's developer console
// 3. Run the following code

{const e=$x('//table[@id="resultatlisteForm:HeleResultater:resultaterPanel"]/tbody/tr[@class="none" or @class="resultatTop"]/td[contains(@class, "col6Resultat") or contains(@class, "col7Studiepoeng")]//span[last()]/text()').reduce((e,t,s,a)=>(s%3==0&&1===a[s+1].length&&e.push({grade:a[s+1].data,credits:parseFloat(a[s+2].data.replace(",","."))}),e),[]),t=e.reduce((e,t)=>e+t.credits,0),s=e.reduce((e,t)=>e+(70-t.grade.charCodeAt(0))*t.credits,0)/t;console.log(`GPA: ${s}, sum of credits: ${t}`)}

stekern

#!/usr/bin/env bash
#
# Copyright (C) 2019 Erlend Ekern <dev@ekern.me>
#
# Distributed under terms of the MIT license.

# # # # # # # # # # # # # # # # #
# A script for seeking a currently playing Spotify track using the command-line
# # # # # # # # # # # # # # # # #

stekern

import subprocess

def lambda_handler(event, context):
    shell_command = event.get("shell_command", "")
    with open("/tmp/script.sh", "w") as f:
        f.write(shell_command)
    try:
        subprocess.check_call("sh -n /tmp/script.sh", shell=True)
    except subprocess.CalledProcessError:
        raise ValueError("'shell_command' does not contain a valid shell command")

stekern

#!/usr/bin/env python3.7
#
# Copyright (C) 2020 Erlend Ekern <dev@ekern.me>
#
# Distributed under terms of the MIT license.

"""
An example of using `functools.reduce` to group a list of dictionaries by a specific key.
"""

stekern

python -c "import sys; import json; j = json.load(sys.stdin); json.dump(j, sys.stdout, indent=2, sort_keys=True, separators=(',', ': '))"

stekern

#!/usr/bin/env bash
set -euo pipefail
IFS=$'\n\t'

read -r -d '' -a regions < <(aws ec2 describe-regions --query "Regions[].[RegionName]" --output text && printf '\0')

for region in "${regions[@]}"; do
  echo "[$region] Finding CloudFormation stacks deployed using CDK"
  read -r -d '' -a stacks < <(aws cloudformation list-stacks --region "$region" --query "StackSummaries[?!contains(keys(@), 'DeletionTime')].[StackName]" --output text && printf '\0')
  test -z "${stacks:-}" && continue

stekern

#!/usr/bin/env bash
#
# Helper functions for replacing placeholders in files.
#
# Distributed under terms of the MIT license.

set -euo pipefail
IFS=$'\n\t'

# Print example usage of the script.