MadLittleMods

Just some notes and references for myself.

• In bash, you can access your C:\ drive via /mnt/c/
• ~ = C:\Users\MLM\AppData\Local\lxss\home\mlm and is different from your Windows user directory C:\Users\MLM

How to google things

ebautistabar

Recovering deleted files in Ubuntu with ext4 filesystem

Recently, I deleted some files by mistake in a Ubuntu machine with an ext4 fs. These notes document the steps I took to get them back.

Important

• this procedure assumes that the partition that contained the deleted files is different from the root partition, as that was the scenario with which I had to deal (deleted files were in my home dir). The procedure needs that the partition that contained the files is unmounted, so if the deleted files were in the root partition, the process would be a bit different (e.g. storing the fs journal in a USB stick, using a live CD/USB to boot and issue the commands, etc.)
• if something is not clear, you need more information, etc. check the sources below

With that out the way, let's begin.

bastman

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

yohhoy

/*
 * Read video frame with FFmpeg and convert to OpenCV image
 *
 * Copyright (c) 2016 yohhoy
 */
#include <iostream>
#include <vector>
// FFmpeg
extern "C" {
#include <libavformat/avformat.h>

theothermattm

# sync everything excluding things in .gitignore
# delete anything on target not in source
# include dotfiles and symlinks, also use compression
rsync -azP --delete --filter=":- .gitignore" . my-target-host:/my/target/directory

justinledwards

#!/bin/bash
v4l2-ctl -c brightness=0
v4l2-ctl -c contrast=120
v4l2-ctl -c white_balance_temperature_auto=0
v4l2-ctl -c gamma=120
v4l2-ctl -c white_balance_temperature=4700
v4l2-ctl -c sharpness=100
v4l2-ctl -c backlight_compensation=0
v4l2-ctl -c focus_absolute=10
v4l2-ctl --list-ctrls-menus

zchee

--- Actions ---
$Copy                                              <M-C>
$Cut                                               <M-X> <S-Del>
$Delete                                            <Del> <BS> <M-BS>
$LRU                                              
$Paste                                             <M-V>
$Redo                                              <M-S-Z> <A-S-BS>
$SearchWeb                                         <A-S-G>
$SelectAll                                         <M-A>
$Undo                                              <M-Z>

prateek

Offline Python Package Install Notes

Two common cases which make the install of Python packages harder due to networking issues are: a) Install behind a Proxy b) Install without access to the internet

(a) Install behind a Proxy

In the case where the target machine connects to the internet over a network proxy, export the following environment vars, as appropriate - http_proxy and https_proxy. Eg:

ShigekiKarita

#ifndef matrix_utils_hpp
#define matrix_utils_hpp

#include <vector>
#include <array>
#include <type_traits>
#include <fstream>

#include <boost/archive/xml_iarchive.hpp>
#include <boost/archive/xml_oarchive.hpp>

burke

Local (OS X) Side

~/Library/LaunchAgents/pbcopy.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
     <key>Label</key>
     <string>localhost.pbcopy</string>