Thursday, February 14, 2019


Python Programming for Beginners

Additional Resources

For even more resources, visit:


Command Line Kung Fu

Do you think you have to lock yourself in a basement reading cryptic man pages for months on end in order to have ninja like command line skills? In reality, if you had someone share their most powerful command line tips, tricks, and patterns, you’d save yourself a lot of time and frustration. This book does just that.

High Availability for the LAMP Stack

Eliminate Single Points of Failure and Increase Uptime for Your Linux, Apache, MySQL, and PHP Based Web Applications

Linux for Beginners

This book is the perfect introduction to the Linux operating system and command line. In it, youll learn the most important fundamentals of Linux.

Python Programming for Beginners

If you are interested in learning how to program, using Python specifically, this book is for you. In it, you will learn how to install Python, which version to choose, how to prepare your computer for a great experience, and all the computer programming basics you’ll need to know to start writing fully functional programs.


High Availability for the LAMP Stack

Learn how to set up a highly available LAMP stack (Linux, Apache, MySQL, PHP). Youll learn about load balancing, clustering databases, creating distributed file systems, and more.

Tuesday, February 12, 2019


The reader who has heard about the impact data science is set to make across industries but isn’t quite sure what skills are required to get a footing in the field. This set of readers can expect to profit from the clear explanations of basic concepts and build intuitions that enable them transition on to more complex topics.

The practitioner who has intermediate level skills in the related fields of statistics, mathematics, computer science and machine learning but wants to understand in what ways data science is a different discipline. This type of reader would understand the concepts presented in this book quickly as data science is an interdisciplinary field that sits at the intersection between many well established scientific fields. At the end of this book, the reader would have a toolbelt of skills to transition into a data science role.

The practicing data scientist or experienced veteran would appreciate this book for providing a refresher on many common concepts and a whirlwind tour of what is currently obtainable in terms of best practices. The breadth of this book is such that this reader would have a reference manual of sorts for how to implement data science techniques using modern tools.

The Free Guides Accompanying This Book Help You Get Started Quickly

About the authors

Dr. Karl Blanks and Ben Jesson help websites win. They are the founders of Conversion Rate Experts (CRE), the world’s leading agency for conversion rate optimization (CRO)—a term coined by the company in 2007.

Over the past ten years, CRE has worked in over 80different verticals, in thirty-fourcountries, and in elevenlanguages, helping to optimize the profits of some of the web’s most sophisticated companies, including

  • Many Silicon Valley giants—the world’s biggest, most successful websites.

  • Websites of leading blue-chip enterprises.

  • Award-winning, fast-growing startups.

CRE increases the profits of businesses scientifically by analyzing their websites’ visitors, creating optimized pages and then A/B testing them to measure the increase in sales. It has generated billions in revenue for its clients and double- and triple-digit improvements are the norm.

CRE is the recipient of a Queen’s Award for Enterprise for Outstanding Achievement in Innovation, the UK’s top award for businesses. The award was given for CRE’s work codifying the methodology that the world’s leading companies now use to improve their websites.

Get your free resources

Links to resources for growing your business

The electronic version of this book contains links to many great resources for growing your business. The paper version doesn’t contain any links, because links add clutter and tend to age quickly. Don’t despair, though. For nearly everything we’ve mentioned, assume that we’ve chosen wording that will allow you to find it easily in a search. Alternatively, you can see all of the links at

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Plus, when you join, you’ll get some useful reports, including examples of winning pages we’ve designed that have more than doubled the sales of our clients.

The free guides accompanying this book help you get started quickly.

Our podcast

You can hear some of our most popular talks by subscribing to the Conversion Rate Experts podcast. You can find details at

Thursday, January 24, 2019

another option is linux user groups lug

Another option is Linux User Groups (LUG). A LUG is a group of people from the same place sharing their common interest in the Linux operating system. They are organized as a loosely associated number of people, or an association that meets regularly. A full list of LUGs worldwide is available from LugsList at

Many LUGs organize meet-ups and events in order to share ideas, exchange experiences, and to learn from each other. This includes local and international events.

Further Reading

If you found this book helpful, please consider leaving a review on Amazon. It shows my wife and I that the long nights we put into creating it were worth it ;)

For further reading on Linux, keep a lookout for more books within this series coming soon.

About the Author

Nathan Clark is an expert programmer with nearly 20 years of experience in the software industry.

With a master’s degree from MIT, he has worked for some of the leading software companies in the United States and built up extensive knowledge of software design and development.

Nathan and his wife, Sarah, started their own development firm in 2009 to be able to take on more challenging and creative projects. Today they assist high-caliber clients from all over the world.

if you now open the dataoutputtxt file you will see all the data which

If you now open the dataoutputtxt file you will see all the data which

Code Explanation:-

  1. We are first creating a "readstream" to our datainput.txt file which contains all our data which needs to be transferred to the new file.
  2. We then need to create a "writestream" to our dataOutput.txt file, which is our empty file and is the destination for the transfer of data from the datainput.txt file.
  3. We then use the pipe command to transfer the data from the readstream to the write stream. The pipe command will take all the data which comes into the readstream, and push it to the writestream.

If you now open the dataOutput.txt file, you will see all the data which was present in the datainput.txt file.

Events in Node.js

Events are one of the key concepts in Node.js and sometimes Node.js is referred to as an Event-driven framework.

Basically, an event is something that happens. For example, if a connection is established to a database, then the database connection event is triggered. Event driven programming is to create functions that will be triggered when specific events are triggered.

Lets look at a basic example of defining an event in Node.js.

We are going to create an event called data_received. When this event is triggered, the text "data received" will be sent to the console.

Sunday, December 30, 2018

in this example we are first declaring the variable i

In this example, we are first declaring the variable ‘i’. Then we assign a value of 5 to the variable before displaying the value in the console. We then assign a new value of 10 to the variable, before again displaying the value in the console.

11.1 Constants

There can come a time when we might not want the value of a variable to change during the course of a program. If we want the value to remain constant, we can define the variable as a constant so that the value cannot be changed. In Java, we can do this by defining the variable with the keywords of ‘final’ and ‘static’. This will look like the following:

idth="0em"> public static final int i = 5;

In this example we have the variable ‘i’, which is assigned the value of 5. But since the variable has been defined as static and final, it means that the value cannot be changed. If we try to change the value during the course of the program, we will get an error message.

11.2 Variable Interactions

The values in variables can also interact with each other. Let’s say we have two integer variables and want to add the values of these variables together. This can be done quite easily with simple mathematical addition. An example of how this can be done in C# is shown below.

Saturday, December 22, 2018

Finding Your Niches And Products Of Соurѕе Just Ѕауіng Trу Оut Thе Ѕtuff

finding your niches and products of соurѕе just ѕауіng trу оut thе ѕtuff

Weight lоѕѕ, making mоnеу, ѕаtеllіtе TV on PC, muѕсlе gain, ѕеlf-hеlр, anti-spyware, fоrеx, аnd mоnеу online. Pеорlе аrе аlwауѕ lооkіng fоr nеw products іn thеѕе nісhеѕ, ѕо уоu cannot саnnіbаlіzе your ѕаlеѕ, nоr саn you run оut of wаrm leads. Of thоѕе nісhеѕ, weight lоѕѕ аnd fіtnеѕѕ are thе biggest асrоѕѕ thе board, wіth mаkіng money соmіng іn at a сlоѕе ѕесоnd.


Rеgаrdlеѕѕ оf whаt tуре of оnlіnе business you аrе trуіng tо dеvеlор, іtѕ a gооd іdеа tо fосuѕ оn one ѕресіfіс nісhе. But picking оut a profitable nісhе оnlіnе can ѕоmеtіmеѕ be like trуіng to find a nееdlе in a haystack. The іntеrnеt is a buѕу рlасе аnd online buѕіnеѕѕ оwnеrѕ nееd tо knоw that they аrе еntеrіng a worthwhile mаrkеt before ѕреndіng tіmе, mоnеу аnd rеѕоurсеѕ on building uр a new іntеrnеt based buѕіnеѕѕ.


Of соurѕе, just ѕауіng "trу оut thе ѕtuff thаt wоrkѕ" isnt very hеlрful, ѕо I want tо gо into a bit more detail оn whаt you can рrоmоtе and hоw tо mаkе уоur ѕеlесtіоn. In terms of finding рrоduсt іdеаѕ, do ѕtісk tо сlісk bаnk аnd Amаzоn and оn оссаѕіоn, use Google tо rеvіеw роѕѕіblе affiliate nеtwоrkѕ іn greater dерth.