Moorthi almoorthi

Effective Engineer - Notes

By Edmond Lau
Highly Recommended 👍
http://www.theeffectiveengineer.com/

What's an Effective Engineer?

They are the people who get things done. Effective Engineers produce results.

Adopt the Right Mindsets

Backup android app, data included, no root needed, with adb

Note: This gist may be outdated, thanks to all contributors in comments.

adb is the Android CLI tool with which you can interact with your android device, from your PC

You must enable developer mode (tap 7 times on the build version in parameters) and install adb on your PC.

Don't hesitate to read comments, there is useful tips, thanks guys for this !

Docker on Android 🐋📱

Edit 🎉

All packages, except for Tini have been added to termux-root. To install them, simply pkg install root-repo && pkg install docker. This will install the whole docker suite, left only Tini to be compiled manually.

Summary

Minimal MP4 Parser Example

Download MP4: https://github.com/alfg/mp4/blob/master/test/tears-of-steel.mp4?raw=true
Run

go run mp4_example.go tears-of-steel.mp4

go run mp4_example_2.go tears-of-steel.mp4

	#!/bin/sh

	readonly cluster_topology=$(redis-cli -h redis-cluster cluster nodes)
	readonly slaves=$(echo "${cluster_topology}" \| grep slave \| cut -d' ' -f2,4 \| tr ' ' ',')

	readonly backup_dir="/opt/redis-backup"
	mkdir -p ${backup_dir}

	for slave in ${slaves}; do
	master_id=$(echo "${slave}" \| cut -d',' -f2)

	package main

	import (
	"flag"
	"fmt"
	"io"
	"log"
	"net/http"
	"net/http/httputil"
	"net/url"

	use constant PRIMITIVES => join( '', 0 .. 9, 'a' .. 'z', 'A' .. 'Z' );

	sub encode_base62 {
	my( $num ) = @_;
	my @c;
	do {
	push( @c, substr( PRIMITIVES, $num % length(PRIMITIVES), 1 ) );
	$num = int( $num / length(PRIMITIVES) );
	} while( $num );
	join( '', reverse @c );

	package mycrypto

	import (
	"crypto/aes"
	"crypto/cipher"
	"crypto/rand"
	"encoding/base64"
	"io"
	"time"
	)

	#!/usr/bin/env bash

	# Josh Skidmore <[email protected]>

	# Basic example of using an HTTP range header to extract EXIF data
	# from a JPEG file without having to download the entire image.
	# This has no error handling and assumes the EXIF data is embedded
	# within the first $KB_TO_DOWNLOAD kilobytes of the image
	# Requirements:
	# * curl