Diego Guerra dgoguerra

Installation

This file covers all the steps needed to install a web server and Yii 2 framework to host a project in an Ubuntu 14.04 server.

Apache and php installation

First, the packages related to apache and php need to be installed:

Add your user to www-data group.

sudo adduser USERNAME www-data

Then, change recursively the ownership of /var/www to your username.

sudo chown USERNAME:www-data -R /var/www

Enable generating core dumps

The configuration file /proc/sys/kernel/core_pattern defines the default behaviour when a crash occurs. If it contains a single word such as core, a core dump will be generated on the current directory with that name. If the first character of its content is |, then the core file will be piped to a process, such as Apport (|/usr/share/apport/apport %p %s %c).

To enable core dumps for your current terminal session ignoring the default action:

ulimit -c unlimited

Remote debugging with GDB and Valgrind

First, Valgrind starts the program to debug:

$ valgrind --vgdb=yes --vgdb-error=0 [valgrind-options] [program] [program-options]

It will halt until GDB is hooked to the process, from another terminal:

Setting up p4merge as diff and merge tool on Windows. Tried for Git version 1.8.4.msysgit.0.

Two alternatives are explained: using the command line, and directly editing the config file.

Setting up from the command line

Being the installation path "C:Program Files\Perforce\p4merge.exe", just run:

$ git config --global diff.tool p4merge

	/**
	* Indents a flat JSON string to make it more human-readable.
	*
	* http://www.daveperrett.com/articles/2008/03/11/format-json-with-php/
	*/
	function json_indent($json)
	{
	$result = '';
	$pos = 0;
	$strLen = strlen($json);

	<!DOCTYPE html>
	<html lang="en">
	<head>

	<link href="lib/bootstrap.css" rel="stylesheet">

	<script type="text/javascript" src="lib/jquery.js"></script>
	<script type="text/javascript" src="lib/bootstrap.js"></script>

	</head>

	export LC_ALL=en_US.UTF-8
	export LANG=en_US.UTF-8

	export HISTCONTROL=ignorespace

	# http://unix.stackexchange.com/a/81699
	alias wanip='dig +short myip.opendns.com @resolver1.opendns.com'
	# http://stackoverflow.com/a/13322549
	alias lanip="ifconfig \| sed -En 's/127.0.0.1//;s/.inet (addr:)?(([0-9]\.){3}[0-9])./\2/p'"

	#!/usr/bin/env bash

	# File name
	readonly PROGNAME=$(basename $0)
	# File name, without the extension
	readonly PROGBASENAME=${PROGNAME%.*}
	# File directory
	readonly PROGDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
	# Arguments
	readonly ARGS="$@"

	# C++ needed to compile node
	# sudo apt-get -y install build-essential

	cd /tmp

	wget --no-verbose http://nodejs.org/dist/node-latest.tar.gz
	tar zxf node-latest.tar.gz
	cd node-v*
	./configure && make && sudo make install