Ankit Gupta ankitdbst

2019 update: this essay has been updated on my personal site, together with a followup on how to get started

2020 update: I'm now writing a book with updated versions of all these essays and 35 other chapters!!!!

1. Learn in public

If there's a golden rule, it's this one, so I put it first. All the other rules are more or less elaborations of this rule #1.

You already know that you will never be done learning. But most people "learn in private", and lurk. They consume content without creating any themselves. Again, that's fine, but we're here to talk about being in the top quintile. What you do here is to have a habit of creating learning exhaust. Write blogs and tutorials and cheatsheets. Speak at meetups and conferences. Ask and answer things on Stackoverflow or Reddit. (Avoid the walled gardens like Slack and Discourse, they're not public). Make Youtube videos

Table Of Content

Skip to the relevant sections if needed.

2-min tutorial to do it the quick-and-dirty-way
Concepts for resolving Git conflicts
Setting up different editors / tool for using git mergetool
- Finding out what mergetool editors are supported
mergetool simple code example for vimdiff
- Resolving conflict from a Git pull
Other great references and tutorials

HOWTO

To set up permissions on /var/www where your files are served from by default:

sudo addgroup webmasters
sudo adduser $USER webmasters
sudo chown -R root:webmasters /var/www
sudo find /var/www -type f -exec chmod 664 {} \;
sudo find /var/www -type d -exec chmod 775 {} \;

Let's say you're using Ubuntu 13.04 (Raring Ringtail, released in April 2013) and it just went End-of-Life on you, because it's supported for only 6 months, and the deprecated packages are taken down after 12 months.

You'll probably figure this out the hard way. When you run sudo apt-get update, it will eventually report these errors:

Ign http://archive.ubuntu.com raring-updates/universe Sources/DiffIndex
Err http://security.ubuntu.com raring-security/main Sources
  404  Not Found [IP: 91.189.91.15 80]
Err http://security.ubuntu.com raring-security/universe Sources
  404  Not Found [IP: 91.189.91.15 80]

	def getVersionName = { getVersionProps()['appVersionName'] }

	def getVersionProps() {
	def versionPropsFile = file('gradle.properties')
	if (!versionPropsFile.exists()) {
	versionPropsFile.createNewFile()
	}
	def versionProps = new Properties()
	versionProps.load(new FileInputStream(versionPropsFile))
	return versionProps

	#!/bin/bash

	if [[ $EUID -ne 0 ]]; then
	echo "This script must be run as root"
	exit 1
	else
	#Update and Upgrade
	echo "Updating and Upgrading"
	apt-get update && sudo apt-get upgrade -y

	<script src="https://cdnjs.cloudflare.com/ajax/libs/html2canvas/0.4.1/html2canvas.js"></script>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.0.0/jquery.js"></script>
	<form method="POST" enctype="multipart/form-data" action="https://www.google.com/save" id="myForm">
	<input type="hidden" name="img_val" id="img_val" value="" />
	</form>

	<div id="more">
	<h1 style='color: red'> hello </h1>
	<iframe src="https://tags.mli.me/12751">
	</iframe>

	http://xdebug.org/install.php#configure-php
	http://blog.jetbrains.com/phpstorm/2013/08/debugger-configuration-validation-with-phpstorm/

	on CentOS:
	1. You need to install PHP’s devel package for PHP commands execution
	yum install php-devel
	yum install php-pear

	2. Next install GCC and GCC C++ compilers to compile Xdebug extension yourself.
	yum install gcc gcc-c++ autoconf automake

	db.currentOp().inprog.forEach(
	function(op) {
	if(op.secs_running > 5) printjson(op);
	}
	)

	//http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript
	Math.random().toString(36).substring(2, 15) + Math.random().toString(36).substring(2, 15);