steven2358

FFmpeg cheat sheet

A list of useful commands for the FFmpeg command line tool.

Download FFmpeg: https://www.ffmpeg.org/download.html

Full documentation: https://www.ffmpeg.org/ffmpeg.html

Basic conversion

olejon

# NOTES

# Spotify 0.9 vs 1.0 is stable, uses less resources overall and works well with Spotify Connect, SpotCommander, Local Files etc
# Tested and works on Fedora 29 64-bit with GNOME, but should work on previous versions as well
# The sources of the Dropbox files, which are hosted by me and the latest and greatest available, are listed above each one
# No system files will be overwritten by these or used by other programs since they depend on the later Fedora versions
# Make sure you copy the whole lines into Terminal
# Each command is on one line and might be long

# START GUIDE

guumaster

Upload a file with $.ajax to AWS S3 with a pre-signed url

When you read about how to create and consume a pre-signed url on this guide, everything is really easy. You get your Postman and it works like a charm in the first run.

Then you open your browser, try your usual $.ajax() and send your PUT operation, and you hit the cold iced wall of AWS error message, a simple <Code>SignatureDoesNotMatch</Code> that will steal hours from your productivity.

So here I come to save you and give you a free working example of how to upload a file directly to AWS S3 from your browser. You are wellcome :).

daanemanz

#!/bin/bash

veth_in_use=()
veth_unused=()
veth_all=()

function veth_interface_for_container() {
    local pid=$(docker inspect -f '{{.State.Pid}}' "${1}")
    mkdir -p /var/run/netns
    ln -sf /proc/$pid/ns/net "/var/run/netns/${1}"

kevin-smets

Default

Powerlevel10k

thuandt

Installing XenServer 6.2.0 from a USB Stick

• Download the XenServer 6.2.0 ISO image

• Format a USB stick using FAT32.

• Use unetbootin to install the ISO to the USB stick. Use the “DiskImage” option instead of the “Distribution” one, and point it right to the ISO file.

• Now we need to fix up some boot stuff (All paths are relative to the root of the USB drive)

plentz

# to generate your dhparam.pem file, run in the terminal
openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048

neoascetic

# On Debian, you need to install these packages:
# jpegoptim optipng pngcrush advancecomp

import subprocess
from os.path import splitext

from django.dispatch import receiver
from easy_thumbnails.signals import saved_file, thumbnail_created

# on-save image optimization

debloper

#!/bin/bash

# Copyright (c) 2021 Soumya Deb <debloper@gmail.com>
#
# 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:

jonathonbyrdziak

<?php
/**
 * Duplicate this file as many times as you would like, just be sure to change the
 * Empty_Widget class name to a custom name of your choice. Have fun! redrokk.com
 * 
 * Plugin Name: Empty Widget
 * Description: Single Widget Class handles all of the widget responsibility, all that you need to do is create the html. Just use Find/Replace on the Contact_RedRokk_Widget keyword to rebrand this class for your needs.
 * Author: RedRokk Interactive Media
 * Version: 1.0.0
 * Author URI: http://www.redrokk.com