Yogendra Sharma Yogendra0Sharma

`vs` Questions

http://stackoverflow.com/questions/804115 (rebase vs merge).
https://www.atlassian.com/git/tutorials/merging-vs-rebasing (rebase vs merge)
https://www.atlassian.com/git/tutorials/undoing-changes/ (reset vs checkout vs revert)
http://stackoverflow.com/questions/2221658 (HEAD^ vs HEAD~) (See git rev-parse)
http://stackoverflow.com/questions/292357 (pull vs fetch)
http://stackoverflow.com/questions/39651 (stash vs branch)
http://stackoverflow.com/questions/8358035 (reset vs checkout vs revert)

Better local require() paths for Node.js

Problem

When the directory structure of your Node.js application (not library!) has some depth, you end up with a lot of annoying relative paths in your require calls like:

var Article = require('../../../models/article');

Those suck for maintenance and they're ugly.

Possible solutions

1. Clone your fork:

git clone [email protected]:YOUR-USERNAME/YOUR-FORKED-REPO.git

2. Add remote from original repository in your forked repository:

cd into/cloned/fork-repo
git remote add upstream git://github.com/ORIGINAL-DEV-USERNAME/REPO-YOU-FORKED-FROM.git
git fetch upstream

Understanding the Memory Layout of Linux Executables

Required tools for playing around with memory:

hexdump
objdump
readelf
xxd
gcore

Deploying an F# ASP.NET Core app to Azure

Last week I spent a lot of time trying to deploy an F# ASP.NET Core app (a Giraffe app, specifically) to Azure because the information to complete all the steps was scattered in several places. So I'm writing this hopefully it will save the pain to others :)

Preparation

The following steps are mostly taken from this guide and it's only necessary to do them once:

Create an account in Azure (or use an existing one)
Create a resource group (or use an existing one)

SQL to MongoDB Mapping Chart

SQL to MongoDB Mapping Chart¶

In addition to the charts that follow, you might want to consider the Frequently Asked Questions section for a selection of common questions about MongoDB.

Executables¶

The following table presents the MySQL/Oracle executables and the corresponding MongoDB executables.

How to: Setup Teamcity Agent on EC2 Ubuntu 12.04.2 Linux with front end tools

References:

Install dependencies

sudo apt-get update

	#!/bin/bash

	#Force file syncronization and lock writes
	mongo admin --eval "printjson(db.fsyncLock())"

	MONGODUMP_PATH="/usr/bin/mongodump"
	MONGO_HOST="prod.example.com"
	MONGO_PORT="27017"
	MONGO_DATABASE="dbname"

	;= @echo off
	;= rem Call DOSKEY and use this file as the macrofile
	;= %SystemRoot%\system32\doskey /listsize=1000 /macrofile=%0%
	;= rem In batch mode, jump to the end of the file
	;= goto end
	;= rem ******************************************************************
	;= rem * Filename: aliases.bat
	;= rem * Version: 1.0
	;= rem * Author: Ben Burnett <[email protected]>
	;= rem * Purpose: Simple, but useful aliases; this can be done by

	#!/usr/bin/python
	#
	# Auto-start and stop EC2 instances
	#
	import boto, datetime, sys
	from time import gmtime, strftime, sleep

	# AWS credentials
	aws_key = "AKIAxxx"
	aws_secret = "abcd"