Mohamed Halawa thecodingcod

Regular Expressions

Basic Syntax

/.../: Start and end regex delimiters
|: Alternation
(): Grouping

How to use kickstart in VirtualBox

This short howto describes how to install VMs via kickstart in VirtualBox. It's using PXE functionality built into the NAT network mode of the VirtualBox. The following instructions apply to CentOS installation but it should work for any RedHat-based distro.

Prepare directory structure

Install pip sudo apt-get install python-pip or wget https://bootstrap.pypa.io/get-pip.py && sudo python get-pip.py
Install powerline sudo pip install powerline-status
Download and install fonts git clone https://github.com/powerline/fonts.git && cd fonts && sh ./install.sh
Add this lines to respective file
.vimrc

set rtp+=/usr/local/lib/python2.7/dist-packages/powerline/bindings/vim/
> " Always show statusline

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

Clarify and agree on the scope of the system

User cases (description of sequences of events that, taken together, lead to a system doing something useful)
- Who is going to use it?
- How are they going to use it?

An Ansible summary

Jon Warbrick, July 2014, V3.2 (for Ansible 1.7)

Configuration file

intro_configuration.html

First one found from of

Gets a JS object which contains the decoded body of the JWT. For now I am pasting this in to postman tests when I need to get JWT decoding

#Important Does not validate the token at all!

	CREATE TABLE IF NOT EXISTS `country` (
	`id` int(11) NOT NULL AUTO_INCREMENT,
	`iso` char(2) NOT NULL,
	`name` varchar(80) NOT NULL,
	`nicename` varchar(80) NOT NULL,
	`iso3` char(3) DEFAULT NULL,
	`numcode` smallint(6) DEFAULT NULL,
	`phonecode` int(5) NOT NULL,
	PRIMARY KEY (`id`)
	) ENGINE=MyISAM DEFAULT CHARSET=latin1;

	<Style x:Key="RoundedButton" TargetType="{x:Type Button}">
	<Style.Setters>
	<Setter Property="Template">
	<Setter.Value>
	<ControlTemplate TargetType="{x:Type Button}">
	<Border x:Name="button" CornerRadius="5" BorderBrush="Black" BorderThickness="1" Background="Azure">
	<TextBlock Text="{TemplateBinding Button.Content}" HorizontalAlignment="Center" VerticalAlignment="Center"/>
	</Border>
	<ControlTemplate.Triggers>
	<Trigger Property="IsMouseOver" Value="True">

	var month= ["January","February","March","April","May","June","July",
	"August","September","October","November","December"];
	var month = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul","Aug", "Sep", "Oct", "Nov", "Dec"];
	//used with date.getMonth()

	// --------------------------------------------------
	// Flexbox SASS mixins
	// The spec: http://www.w3.org/TR/css3-flexbox
	// --------------------------------------------------

	// Flexbox display
	@mixin flexbox {
	display: -webkit-box;
	display: -moz-box;
	display: -ms-flexbox;