ErykDarnowski

Crop out view from glass door from P1S timelapse video using ffmpeg

➜ ffmpeg -i in.mp4 -vf "crop=1240:720:0:0" out.mp4
#     cropped width and height ^                  (we're removing 40px from the height)
#  coordinates of the top-left corner ^           (we're setting the top-left corner to the top-left of the screen so we cut out the bottom 40px)

ErykDarnowski

Linux show dir sizes in human readable format and sort them in ascending order

du -sh * | sort -h

ErykDarnowski

Crop out the Windows 10 taskbar from a 1080p video using ffmpeg

ffmpeg -i in.mp4 -vf "crop=1920:1040:0:0" out.mp4
#     cropped width and height ^                  (we're removing 40px from the height)
#  coordinates of the top-left corner ^           (we're setting the top-left corner to the top-left of the screen so we cut out the bottom 40px)

ErykDarnowski

heif-convert convert all .heic files to .png

This snippet will (in current dir):

1. Convert all files of .heic / .HEIC extension to ones with .png.
2. Remove all original .heic files.

find . -type f -iname '*.heic' -print0 | while IFS= read -r -d '' file; do heif-convert "$file" -f "png" && rm "$file"; done

ErykDarnowski

USOS timetable block time calculator [Userscript]

A script that adds time of block next to it's start / end times in the timetable.

Instructions

1. Install a Userscript browser extension

• Tampermonkey (I use this one)
• Violentmonkey
• etc.

ErykDarnowski

USOS print list of course final grades to console

This little script works for both ordinary and part time timetables + has a bunch of cool QoL features ;)
(It displays the nicer timetable under the original one)

Instructions

1. Go to your courses page (for me its: https://usosweb.ansb.pl/kontroler.php?_action=dla_stud/studia/oceny/index)
2. Open the browser Dev Tools F12
3. Paste in the code:

ErykDarnowski

USOS print list of courses to console

This little script works for both ordinary and part time timetables + has a bunch of cool QoL features ;)
(It displays the nicer timetable under the original one)

Instructions

1. Go to your courses page (for me its: https://usosweb.ansb.pl/kontroler.php?_action=dla_stud/studia/oceny/index)
2. Open the browser Dev Tools F12
3. Paste in the code:

ErykDarnowski

#!/bin/bash

# THIS ONLY CHECK THE DIFF IN AMOUNT OF FILES, NOT ACTUAL CONTENT!!!
# Make sure the SRC path has more files than the DST.

SRC_PATH="/d/Games/SteamLibrary/steamapps/common/assettocorsa/content/cars"
DST_PATH="//192.168.1.5/home/Backupy/AC Content Manager/content/cars"

DIFF_RESULT=$(diff --brief "$DST_PATH" "$SRC_PATH" \
              | sed --quiet "s~^Only in \($SRC_PATH\): \(.*\)~'\1\/\2'~p")

ErykDarnowski

ffmpeg convert all files of extension to different extension

This snippet will (in current dir):

1. Convert all files of $first_ext extension to ones with $second_ext.
2. Remove all files with the $first_ext extension.

first_ext="webm"
second_ext="mp4"
for i in *.$first_ext; do ffmpeg -i "$i" "${i%.*}.$second_ext"; done; for i in *.$first_ext; do rm "$i"; done

ErykDarnowski

USOS deadlines page date highlighter [Userscript]

A script that highlights single date deadlines that happend to fall on a weekend (for part time students) and deadlines that are longer than a 1 day.

*The regex in this script may not work due to how other Unis write their pages!!!

Instructions

1. Install a Userscript browser extension

• Tampermonkey (I use this one)