Code In Tech : 2012

Saturday 20 October 2012

Use Oracle VirtualBox to test Windows 8 Enterprise edition

Windows 8 is finally finished, and we now know it’ll be available from October 26 . If you really need to see what it can do right now, though, Microsoft have just released an evaluation edition of Windows 8 Enterprise that can download and try for free.

And that means you’ll get access to several more corporate features which aren’t available in the regular or Professional Windows 8 editions. Like Windows To Go, for instance, which allows the operating system to boot and run from USB drives.

Beware, though -- this isn’t quite as generous as it sounds. The build will expire after 90 days, and you won’t be able to revert to a previous edition of Windows, or install a new copy over the top of the evaluation build. It’s really just for testing, not long-term use, so once the 90 days are up you’ll probably want to reformat and start again.

How to mount / emulate ISO files in windows xp/vista/7

Mounting ISO files is the easiest way to access their data without burning CD/DVD. While Linux and Mac have native support for ISO files; in this article, I will cover what is an ISO file and how to mount them in Windows using freeware tools.

What is an ISO file?

An ISO file is simply a disc image stored as a file, composed of all of the contents of a CD/DVD disc. In sort an ISO file as a full-fidelity image (digital copy) of the optical disc.

There are tons of freeware and paid tools that mount ISO and other image files, but I am going to mention some names that are freeware, easy to use and the most importantly digitally signed applications.

Let’s talk about that I like the most i.e. Pismo File Mount Audit Package. It is a tiny Windows app that mounts ZIP, ISO, Compact ISO, Compact File Set and Private Folder files to the file system as virtual folders.

FIREFOX KEYBOARD SHORTCUTS

CTRL + T: Opens a new tab.
CTRL + R: Reloads the current tab.
CTRL + H: View your browsing history in a sidebar
CTRL + J: Opens your Firefox download manager
CTRL + TAB: Moves to the next tab.
CTRL + SHIFT + TAB: Moves to the previous tab.
CTRL + Z: Undo last action
CTRL + SHIFT + Z: Redo last action
CTRL + ENTER: Auto-complete URL to .com
CTRL + SHIFT + ENTER: Auto-complete URL to .org

How to create an Undeletable folder in ur Pc

First go to run
Type CMD and press enter..Now DOS will be opened
Type D: for change drive location
type md AUX\
Now your undeletable folder created in D drive..
Now try to delete it .... folder not deleted..

How to delete this folder...

Go to CMD type D:
Then type rd AUX\

Sunday 10 June 2012

Alt codes list

An ALT key can help you access atl codes, or character that are not available on a normal key board.

These codes can be use to write in foregin languages, mathematical expression or to add fun symbols to your message.
This is the alt code characters table from 0-255 decimal numbers.
Check How To Use ALT Code Characters to learn the use of alt codes.

Symbol	Number
☺	1
☻	2
♥	3
♦	4
♣	5

Make sure that you switch on the Number Lock on your key board.
Hold down the Alt key (Left Alt key).
Type the number of which alt code you want to get.

EXAMPLE 1 :

The decimal alt code of Heart is 3.

Press and Hold Alt key and type 3 then you will get ♥

EXAMPLE 2 :

The decimal alt code of one forth is 172

Press and Hold Alt key and type 172 then you will get ¼

Friday 8 June 2012

How to make bootable pen-drive?

1. Plug your USB storage device and run CMD and execute the following commands one after another.
o Diskpart Run Disk partition utility
o List disk To get disk index that is used to perform disk partitioning.
o Select disk 1 Selects disk to perform disk partitioning.
o Clean Flush your existing all USB drive’s partitions.
o Create partition primary Creates a partition as primary partition.
o Format recommended Format your USB drive with recommended parameters. (No need to worry about file system format)
o Active Set the partition as active to hold bootmgr.
o Exit To quit Diskpart utility

Thursday 7 June 2012

Wow...The Windows Key is useful....

Windows Key + ↓ : Minimizes/restores window

Windows Key + ← : Docks window to left of screen

Windows Key + → : Docks window to right of screen

Windows Key + ↑ : Maximizes window

Windows Key + - : Zooms out when magnifier is active

Windows 7 Shortcut : Windows Key + 'Tab'

Time for another Windows keyboard shortcut to save you time and effort. This one is for Windows Vista and Windows 7 users with the "Aero" desktop: it's the Windows key plus the "Tab" key.

That key combination will cycle through your open windows in "Aero Flip" style. That means it puts each of

Windows 7 Shortcut : Windows Key + 'L'

Windows 7 shortcut that's less well-known, but extremely valuable, especially in a setting where you need to secure your computer if you're away from it for a few minutes: "Windows" key + "L".

The Windows key is the one with the little flag on it, normally on the lower-left part of the keyboard. Using that key combination immediately locks your desktop; if you've password-protected it, no one can get access to your computer without the password.

Shell script to fine area and perimeter

SOURCE CODE:

echo "Enter the length of the rectangle"
echo "Enter the length of the rectangle"
read l
echo "Enter the breadth of the rectangle"
read b
echo "Enter the side of the square"
read a
areaR=`expr $l \* $b`
periR=`expr $l \* 2 + $b \* 2`

Shell script for multiplication table

SOURCE CODE:

echo "Enter the number:"
read i
echo "$i table"
j=1
while [ $i -le 10 ]
do
l=`expr $j \* $j = $l`
echo "$j *$i = $l"
j=`expr $j + 1`
done

Shell script for swapping two values

SOURCE CODE:

echo "Enter first value:"
read a
echo "Enter second value:"
read b
temp=$a
a=$b
b=$temp
echo "The swapped value is:"
echo "First value = $a"
echo "Second value = $b"

Shell script to find simple interest

SOURCE CODE:

echo " Enter the principle value: "
read p
echo " Enter the rate of interest:"
read r
echo " Enter the time period:"
read t
s=`expr $p \* $t \* $r / 100`
echo " The simple interest is "
echo $s

Shell script to find Leap Year

SOURCE CODE:

echo "Enter the year :"
read year
d =`expr $year % 4'
if [ d -eq 0 ]
then
echo “$Given year is a leap year”
else
echo "$Given year is not a leap year”
fi

Shell script to greet user according to time.

SOURCE CODE:

hr=`date "+ %H"`

echo "Hour : " $hr

if test $hr -lt 12

then

echo "Good Morning User "

elif test $hr -gt 16

Shell script to display the digits in odd position from the given five digit no.

SOURCE CODE:

echo “Enter the string of the five nos.”

read n

i=1

a=” ”

while [ $i –le 5]

o=`echo $n | cut –c $i`

s=$s$a$o

i=`expr $i + 2`

done

Shell script to read name and price of article and calculate net price with discount as follows.>If price less than 100 then 10% discount If price >= 100 then 20% discount

SOURCE CODE:

echo “Enter the article’s name:“

read name

echo “Enter the price:”

read p

if [ $p –lt 100 ]

then

t=`expr $p \* 10`

r=`expr $t / 100`

n=` expr $p - $r`

else

Shell script for interactive file handling program

SOURCE CODE:

echo "1. To copy a file"

echo "2. To rename a file"

echo "3. To remove a file"

echo "4. To compare two file"

read ch

case "$ch" in

echo "Enter existing file name :"

read file1

Shell script to Create a calculator by case system

SOURCE CODE:

echo “Enter the values :”

echo “x:”

read x

echo “y:”

read y

echo “1: Addition”

echo “2: Subtraction”

echo “3: multiplication.”

echo “4: Division.”

Write a shell script. to remove files having following properties…(i) Remove all files having exactly 3 characters. (ii) Remove all files having specified extension. (iii) Remove all files having Name starting with lower case letters and ending with digits.

SOURCE CODE:

echo “1: File having only 3 char."

echo “2: File having specified extension.”

echo “3: File having name starting with lower case letters and ends at digits.”

echo “Enter your choice:”

read c

if [ $c = 1 ]

then

echo “Files are…”

ls ???

Sunday 3 June 2012

How To Password Protect a Folder On a Windows Computer!

steps :

Create a new folder or use one you already have.
(we need some data in this folder)
Now with the new folder right click it and select send to compressed zip as shown in figure.
Now open the compressed zip folder and extract a file
select all folders in the file and chose add password option as shown in figure.
Now create a password as shown in he figure.Now all files are password protected.
Now we need password to open that file.Files or folders are password protected.

Rename The Icon or Folder Without Giving Name (Blank Icon name)

steps :

Choose the Folder or Icon, that you want to Remove the name.
Right click on the icon and click on "Rename" .
Type the name "Alt" + "255".
~>Note- (Don't press the numbers above keyboard, Type the numbers from the Numpad )
Press Enter.

~>You Rename the folder with no name..!

How To Make Folder Invisible

This folder make folder invisible.So no one will be able to seen that folder But in thumbnail view of folder the location of the folder is viewable.

process to make folder invisible

First create a folder without giving name.
to do so visit here Rename The Icon or Folder Without Giving Name
Now right click on the folder and chose properties.
On the property window nevigate to "customize" tab.
Now click on change icon.
Now the icon selection window will be opened.
Now move the scroller and chose the empty icon as shown in the figure.
click on ok and apply all the changes.
now you will find that the folder that you have created is invisible.
you will be hidden this folder.

Saturday 12 May 2012

Shell script to find a max no out of three nos using else if & and operator.

SOURCE CODE:

echo “Enter the three nos.”

read a

read b

read c

if [ $a –gt $b –a $a –gt $c ]

then

echo $a “is maximum no.”

elif [ $b –gt $a –a $b –gt -$c ]

then

echo $b “maximum no.”

else

echo $c “is maximum no.”

Shell script to concate two strings and find the length of resulting string.

SOURCE CODE:

echo “Enter 1st string:”

read s1

echo “ Enter 2nd string”

read s2

s=$s1$s2

l =`expr length $s`

echo “string:” $s “ length :” $l

Shell script to reverse the given no.

SOURCE CODE:

echo “Enter the no.:”

read n

l =`expr length $n `

a=1

d=$n

while [ $a –le $l ]

m=`expr $d % 10`

d=`expr $d / 10`

s=$s$m

a=`expr $a + 1`

done

echo $s

Shell script to sum of digits of a given no.

SOURCE CODE:

echo “Enter the no:”

read n

l =`expr length $n `

a=1

while [ $a –le $l ]

r=`expr $n | cut –c $a`

s=`expr $s + $r`

a=`expr $a + 1`

done

echo “Ans:“ $s

Shell script to reverse a string.

SOURCE CODE:

echo “Enter the string”

read str

l=`expr length $str`

a=1

r=$l

while [ $a –le $r ]

s=`expr $str | cut –c $l`

l=`expr $l – 1`

a=`expr $a + 1`

Shell script to find the max. no out of given five nos.

SOURCE CODE:

echo “Enter five nos.”

i=0

b=0

t=0

while [ $i –lt 5 ]

read a

b= $t

if teat $b –lt $a

then

Shell script to find the length of string, if it’s greater than 10 then print string is greater than 10 else less than 10.

SOURCE CODE:

echo “Enter the string:“

read str

l =`expr length $str`

if [ $l –lt 10 ]

then

echo “String is less than 10”

if [ $l –eq 10 ]

then

echo “String is equal to 10”

Shell script to print the fibonaci series up to given no.

SOURCE CODE:

echo “Enter the no.:“

read n

i=0

j=1

k=1

echo $i

while [ $j –le -$n ]

echo $k

k=`expr $j + $i`

Shell script to check whether the given no. is Armstrong or not

SOURCE CODE:

echo “ Enter the no.”

read n

l =`expr length $n`

i=1

d=1

while [ $i –le $l ]

r=`expr $n | cut –c $i`

i=`expr $i + 1`

m=`expr $r \* $r \* $r`

Shell script to check whether the given no. is perfect or not.

SOURCE CODE:

echo “Enter the no.:”

read n

i=1

k=0

while [ $i –lt $n ]

j =`expr $n % $i`

if [ $j = 0 ]

then

k =`expr $k + $i`

Shell script to print the series of a prime no. up to given no.

SOURCE CODE:

echo “Enter the no:“

read n

i=1

echo $i

while [ $i -le $n ]

k=2

while [ $k – lt $i ]

j =`expr $i % $k`

Shell script to find the factorial of a given no.

SOURCECODE:

echo “Enter the no:“

read n

i=1

a=1

d=0

if [ $n –eq $d ]

then

echo $a

else

while [ $i –le $n ]

Shell script to check whether the given string is palindrome or not.

SOURCE CODE:

echo “Enter the string:“

read str

l =`expr length $str`

a=l

while [ $a –lt -$l ]

s1=`echo $str | cut –c $a`

s2=`echo $str | cut –c $l`

if [ $s1 != $s2 ]

then

Shell script to check whether the given no. is prime or not

SOURCE CODE:

echo “Enter the no.”

read n

i=2

while [ $i –lt $n ]

e=`expr $n % $i`

if test $e –eq 0

then

echo “Given no. is not PRIME”

break;

Shell script to find whether the given no. is odd or even

SOURCE CODE:

echo “Enter the no.:”

read a

e= `expr $a % 2`

if test $e –eq 0

then

echo “no. is EVEN”

else

echo “no. is ODD”

OUTPUT:

Enter the no.:
7
no. is ODD

Shell script to count the number of users

SOURCE CODE:

echo “no of users:”

who | wc –l

OUTPUT:

no of users:

BASIC LINUX COMMANDS

DATE

$ date

Displays the current

Date.

MAN

$ man

Displays the manual

Page of our terminal.

$ ls

List the number of files and directories.

Ls-al

$ ls-al

List all the files in thecurrent working directory

showing permissions,

ownership, size, time and

date.

C Program to Display the Equivalent Memory Addresses for the given values using Array

SOURCE CODE:
#include<stdio.h>
#include<conio.h>
void main()
{
int a[10],i,*p;
clrscr();
printf("\nEnter 10 Nombers:");

for(i=0;i<10;i++)
{
scanf("%d",&a[i]);

C program for compare two string

SOURCE CODE:
#include<stdio.h>
#include<conio.h>
#include<string.h>
void main()
{
int c,flag=0,i;
char a[25],b[25];
clrscr();
printf("Enter first string\n");
gets(a);

C program for replace character of string

SOURCE CODE:
#include<stdio.h>
#include<conio.h>
void main()
{
int i=0;
char str[10],och,nch;
clrscr();
printf("Enter a string:");
scanf("%s",str);
flushall();

C program for combination of two string

SOURCE CODE:
#include<stdio.h>
#include<conio.h>
#include<string.h>
void main()
{
int i=0,j=0;
char a[25],b[25];
clrscr();
printf("Enter first string\n");
gets(a);

C program for 2d array replace by zero

SOURCE CODE:
#include<stdio.h>
#include<conio.h>
void main()
{
int i,j,a[3][3];
clrscr();
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{

C program to find average using array

SOURCE CODE:
#include<stdio.h>
#include<conio.h>
void main()
{
int a[15],sum=0,i;
float avg;
clrscr();
printf("Enter 20 number:");
for(i=0;i<20;i++)
{

C program to print following pattern of numbers

                                1
                                12
                                123
                                1234
                                12345
SOURCE CODE:
#include<stdio.h>
#include<conio.h>
void main();
{
int i,j;
clrscr();
for(i=1;i<=5;i++)
{
for(j=1;j<=i;j++)
{

C program to find you got distiction or not

SOURCE CODE:
include<stdio.h>
#include<conio.h>
void main()
{
float c,e,m,t,p;
clrscr();
printf("enter marks of C.P.U. :");
scanf("%f",&c);
printf("enter marks of E.E.E. :");
scanf("%f",&e);

C program for swap two values without using any other value

SOURCE CODE:
#include<stdio.h>
#include<conio.h>
void main()
{
int a,b;
clrscr();
printf("enter value for a :");
scanf("%d",&a);
printf("enter value for b :");
scanf("%d",&b);

C program to print following pattern of star

***

****

*****

SOURCE CODE:
#include<stdio.h>
#include<conio.h>
void main();
{
int i,j;
clrscr();
for(i=1;i<=5;i++)
{
for(j=1;j<=5;j++)

C program to Find total numbers which are divided by 7

SOURCE CODE:
#include<stdio.h>
#include<conio.h>
void main()
{
unsigned int i,sum=0,count=0;
clrscr();
printf("\nthey are divided by 7:");
for(i=101;i<=900;i++)
{

C progrm to Find maximum of three numbers

SOURCE CODE:
#include<stdio.h>
#include<conio.h>
void main()
{
int a,b,c;
clrscr();
printf("Enter number A:");
scanf("%d",&a);
printf("Enter number B:");
scanf("%d",&b);

C program to Find volume of spehre

SOURCE CODE:
#include<stdio.h>
#include<conio.h>
void main()
{
float pi=3.14,v,r;
clrscr();
printf("enter radius of spehre :");
scanf("%f",&r);
v=(float)4/3*pi*r*r*r;
printf("volume of spehre is %f",v);
getch();
}

C program to Find area and circumferance of circle

SOURCE CODE:
#include<stdio.h>
#include<conio.h>
#define pi 3.14
void main()
{
float a,c,r;
clrscr();
printf("enter value of radius :");
scanf("%f",&r);
a=pi*r*r;

C program for swap two values

SOURCE CODE:
#include<stdio.h>
#include<conio.h>
void main()
{
int a,b,c;
clrscr();
printf("enter value for a :");
scanf("%d",&a);
printf("enter value for b :");
scanf("%d",&b);

C program for arithmetic operation between two numbers

SOURCE CODE:
#include<stdio.h>
#include<conio.h>
void main()
{
int a,b,ans;
clrscr();
printf("enter a number :");
scanf("%d",&a);
printf("enter second number :");
scanf("%d",&b);

C program to Find temperature in fehrenheit

SOURCE CODE:
#include<stdio.h>
#include<conio.h>
void main()
{
float c,f;
clrscr();
printf("Enter temperature in celsius :");
scanf("%f",&c);
f=(1.8)*c+32;
printf("Temperature in fehrenheit is : %f",f);
getch();
}

Code In Tech - The Ultimate World of Computer Technology

Pages

Saturday 20 October 2012

Tuesday 21 August 2012

What is an ISO file?

FIREFOX KEYBOARD SHORTCUTS

Tuesday 14 August 2012

How to delete this folder...

Sunday 10 June 2012

Friday 8 June 2012

Thursday 7 June 2012

Tuesday 5 June 2012

Monday 4 June 2012

Sunday 3 June 2012

Saturday 12 May 2012

Monday 23 April 2012

Sunday 22 April 2012

Tuesday 27 March 2012

Sunday 25 March 2012

Saturday 24 March 2012