Aahnik Daw aahnik

Make GIF ScreenCasts of 30s

Ubuntu records 30s .webm screencasts in Videos Folder via Ctrl+Shift+Alt+R, automatically convert them to GIF in Pictures Folder, and delete video file

Make sure to have ffmpeg installed

Save the toGIF.sh in your Videos folder, link
make it executable chmod +x ~/Videos/toGIF.sh
Go to Settings ---> Keyboard Shortcuts ---> New ShortCut
Set a new shortcut like this

Start a stopped docker container in bash/shell interactive mode

For instance, you have just pulled a CentOS or Ubuntu image using docker pull centos:latest or docker pull ubuntu:latest.

Your immediate command would be

# docker run -it centos:latest
# docker ps -a

How to Add a Watermark to Video

FFMPEG filters provide a powerful way to programmatically enhance or alter videos, and itâ€™s fairly simple to add a watermark to a video using the overlay filter. The easiest way to install ffmpeg is to download a pre-built binary for your specific platform. Then you donâ€™t have to worry about including and installing all the right dependencies and codecs you will be using.

Once you have ffmpeg installed, adding a watermark is as easy as passing your existing source through an overlay filter like so:

ffmpeg -i test.mp4 -i watermark.png -filter_complex "overlay=10:10" test1.mp4

Basically, weâ€™re passing in the original video, and an overlay image as inputs, then passing it through the filter, and saving the output as test1.mp4.

PdfLatex is a tool that converts Latex sources into PDF. This is specifically very important for researchers, as they use it to publish their findings. It could be installed very easily using Linux terminal, though this seems an annoying task on Windows. Installation commands are given below.

Install the TexLive base

sudo apt-get install texlive-latex-base

Also install the recommended and extra fonts to avoid running into the error [1], when trying to use pdflatex on latex files with more fonts.

	# copied from https://github.com/tulir/mautrix-telegram/blob/master/mautrix_telegram/util/parallel_file_transfer.py
	# Copyright (C) 2021 Tulir Asokan
	import asyncio
	import hashlib
	import inspect
	import logging
	import math
	import os
	from collections import defaultdict
	from typing import Optional, List, AsyncGenerator, Union, Awaitable, DefaultDict, Tuple, BinaryIO

	import express from 'express';
	import fs from 'fs';

	const server = express();

	server.set('view engine', 'ejs');

	function filesToRender(dir){
	function fileSubstring(file, dir){
	return file.substring(0, file.length - 4).replace(dir,'')

	MIT License

	Copyright (c) 2014 Piotr Kuczynski

	Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

	The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWAR