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Press the “up” arrow in the Mac or Linux command line and you’ll see the last command you ran. Keep pressing “up” and you’ll see more commands; you can go back days, months, or even years. This is called your history, and it’s very convenient. If you made a mistake typing a long command, simply press “up” and fix the problem. If you want to re-connect to an SSH server you used the other day, simply press “up” until you see the relevant command. It’s useful, but there’s also a potential security problem here, particularly if you accidentally typed a password in plain text at some point. How does one clear this history? Long story short, you can do so with two commands:  history -c , followed by  rm ~/.bash_history . Here’s what those commands do, for greater clarity. Clear the Current Session’s History Your history can be broke down into two chunks. There’s your current sessions’ history, and there’s your long-term history. Our first command,  history -c , deals with the c...

Readability is the path to more interesting projects within a career. Readability is the path to knowing what you wrote 5 years ago, and makes code reuse actually viable Readability is the path to acquiring protégées that can learn from your style. Readability that is understandable by others allows people to appreciate your code at a level of architecture, not just functional. Readability is the path of lease resistance when you have a bug in your code. Readability is the how you put ideas into understandable text and syntax, much like writing a paragraph in natural language. Readability is somehow not a priority for most other developers, however it’s probably pretty important to your development director, if you work for one. Readability is more important than most believe. With moore’s law, it’s even more important to focus on readability than pre-mature optimization. Here’s more: Most schools and colleges teach computer science like trade school skills. How to fix a car. How to be...

The year 2017 has arrived. So, this year, are you ready to learn a new programming language and boost your skill set? If your answer is yes, you’re at the right place. GitHub’s recent data gives us a pretty good idea about the best popular programming languages that you need to learn in 2017. Our top recommendations are Java, JavaScript, Swift, and Python. T hese days, skilled programmers are in great demand. Over the past decade, coding jobs have become mainstream, creating millions of employment opportunities every year. If you’re new to the programming world, there are many ways to choose your first programming language. You can analyze the needs — app development, web application, web design — and choose the programming language. If you’re looking for a useful and easy language to get started, Python can help you out. Those who are already having the knowledge of programming, are taking the polyglot approach. The programmers are learning programming languages and impr...

The various logical drives in Windows are assigned a drive letter. Generally, the drive letter for the first logical drive is C followed by D, E, F. Well, A and B are also alphabets. These drive letters are kept in reserve for some special purpose. Here is the reason. I n the case of Windows and many other operating systems, a physical hard drive–used to install OS files and store data–is divided into partitions. In Windows, these partitions can be formatted using  file systems  like NTFS, FAT32, etc. These partitions are then known as logical drives and they are assigned a drive letter. As far as my tech knowledge is concerned, it started to sprout in the mid-2000s. My first computer came with Windows and, obviously, or as some sort of a tradition, the first drive letter was C. In the beginning, I was told not to put any stuff in the C drive. Later, when a repair guy fixed my desktop, he installed Windows to the D drive. It seemed a bit unusual and it was a dilemma ...

How To  Secure Your All Social Media Accounts  From Hackers? Social Media is a tool in every single person’s hand to share his/her feeling and idea to the world. But if your  social media account will hacked?  Then  where to go?  How to recover that account? And mostly asked Question is How To secure social media accounts Like Facebook, Gmail, Twitter and Instagram from hackers .So in this post i’ll tell you how to secure social media accounts from hackers.So in this article i’ll show you which methods hackers use to hack your accounts. How Hackers Hack Your Facebook/Gmail/Twitter Accounts. #1. Phishing. Phishing is a Most common method used for hacking like  facebook hacking . mostly readers don’t have a single knowledge about that  What Is Phishing?  phishing is trick to make a fake login page of any social media site like facebook or gmail or any other. as the hacker send you the fake login page of social sites in your gmail or in anyother...

Starting a Youtube channel is the simplest way of making money online and needs no investment. YouTube gets almost 5 billion video views per day which proves its power on the internet. Felix Kjellberg, the owner of PewDiePie (a YouTube account), has earned 12 million dollars in 2015 by running a single YouTube channel. You too can see such success if you capitalize on the opportunity that YouTube provides us currently. Suitable For - People who love to create videos, like to talk in front of a camera, shoot documentaries or short films. Skills Required - Ability to create a video using software tools or record a video using your mobile phone or camcorder. Time Required For Starting A YouTube Channel - Virtually you can start within minutes. You'll have to visit YouTube.com , create a channel and upload videos. Tips - 1. Create a YouTube channel around a specific theme such as Humor, Tutorial, Recipe, etc. Don’t just go out create any random unrelated videos channel. For e.g. If you...