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@simonw
simonw / recover_source_code.md
Last active September 28, 2024 08:10
How to recover lost Python source code if it's still resident in-memory

How to recover lost Python source code if it's still resident in-memory

I screwed up using git ("git checkout --" on the wrong file) and managed to delete the code I had just written... but it was still running in a process in a docker container. Here's how I got it back, using https://pypi.python.org/pypi/pyrasite/ and https://pypi.python.org/pypi/uncompyle6

Attach a shell to the docker container

Install GDB (needed by pyrasite)

apt-get update && apt-get install gdb
@Jamesits
Jamesits / tg-cli-Ubuntu.sh
Last active June 28, 2019 09:34
How to compile tg-cli on macOS 10.12
#!/bin/bash
# for Ubuntu
sudo apt-get install build-essential libreadline-dev libconfig-dev libssl-dev lua5.2 liblua5.2-dev libevent-dev libjansson-dev libpython-dev make
git clone https://github.com/vysheng/tg.git --recursive
cd tg
./configure
make
@avafloww
avafloww / PhpJava.java
Last active April 1, 2025 18:01
This snippet of code is syntactically valid in both PHP and Java, and produces the same output in both.
/*<?php
//*/public class PhpJava { public static void main(String[] args) { System.out.printf("/*%s",
//\u000A\u002F\u002A
class PhpJava {
static function main() {
echo(//\u000A\u002A\u002F
"Hello World!");
}}
//\u000A\u002F\u002A
PhpJava::main();
@bmweiner
bmweiner / sonos_airplay.md
Last active June 11, 2025 11:01
Stream audio to any Sonos component via AirPlay using a Raspberry Pi.

Sonos Airplay

Stream audio to any Sonos component via AirPlay using a Raspberry Pi (Model B, Raspbian Jessie) and the following software:

  • Shairport Sync: configures the Raspberry Pi as an AirPlay audio player.
  • DarkIce: encodes audio received from AirPlay (system audio) and sends it to Icecast2.
  • Icecast2: serves streaming audio from DarkIce at a network URL.
@gbaman
gbaman / HowToOTGFast.md
Last active July 29, 2025 07:41
Simple guide for setting up OTG modes on the Raspberry Pi Zero, the fast way!

Setting up Pi Zero OTG - The quick way (No USB keyboard, mouse, HDMI monitor needed)

More details - http://blog.gbaman.info/?p=791

For this method, alongside your Pi Zero, MicroUSB cable and MicroSD card, only an additional computer is required, which can be running Windows (with Bonjour, iTunes or Quicktime installed), Mac OS or Linux (with Avahi Daemon installed, for example Ubuntu has it built in).
1. Flash Raspbian Jessie full or Raspbian Jessie Lite onto the SD card.
2. Once Raspbian is flashed, open up the boot partition (in Windows Explorer, Finder etc) and add to the bottom of the config.txt file dtoverlay=dwc2 on a new line, then save the file.
3. If using a recent release of Jessie (Dec 2016 onwards), then create a new file simply called ssh in the SD card as well. By default SSH i

@bastman
bastman / docker-cleanup-resources.md
Created March 31, 2016 05:55
docker cleanup guide: containers, images, volumes, networks

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

@biojazzard
biojazzard / goprofisheye.command
Created March 8, 2016 21:44
GoPro FishEye Undistort /w CLI | OSX
cd "$(dirname "$0")"
echo "GoPro Fisheye, undistort GoPro images by @biojazzard"
printf "\n"
sleep 3
echo "mogrify must be installed: ex: brew install mogrify"
sleep 3
printf "\n"
echo "Undistort all the images in the current folder or just one? (type all for all pictures or filename for undistorting a custom photo)"
read fisheye
if [[ $fisheye == "all" ]]
@shmup
shmup / torrents.md
Last active July 5, 2025 22:03
transmission blocklist guide

Transmission Blocklist

The Transmission torrent client has an option to set a Blocklist, which helps protect you from getting caught and having the DMCA send a letter/email.

It's as simple as downloading and installing the latest client:

@gbaman
gbaman / HowToOTG.md
Last active July 21, 2025 20:42
Simple guide for setting up OTG modes on the Raspberry Pi Zero

Raspberry Pi Zero OTG Mode

Simple guide for setting up OTG modes on the Raspberry Pi Zero - By Andrew Mulholland (gbaman).

The Raspberry Pi Zero (and model A and A+) support USB On The Go, given the processor is connected directly to the USB port, unlike on the B, B+ or Pi 2 B, which goes via a USB hub.
Because of this, if setup to, the Pi can act as a USB slave instead, providing virtual serial (a terminal), virtual ethernet, virtual mass storage device (pendrive) or even other virtual devices like HID, MIDI, or act as a virtual webcam!
It is important to note that, although the model A and A+ can support being a USB slave, they are missing the ID pin (is tied to ground internally) so are unable to dynamically switch between USB master/slave mode. As such, they default to USB master mode. There is no easy way to change this right now.
It is also important to note, that a USB to UART serial adapter is not needed for any of these guides, as may be documented elsewhere across the int

@creaktive
creaktive / wifi_rebooter.sh
Created October 28, 2015 09:27
*/1 * * * * /usr/local/bin/wifi_rebooter.sh
#!/bin/bash
# The IP for the server you wish to ping (8.8.8.8 is a public Google DNS server)
SERVER=8.8.8.8
# Only send two pings, sending output to /dev/null
ping -c2 ${SERVER} > /dev/null
# If the return code from ping ($?) is not 0 (meaning there was an error)
if [ $? != 0 ]