- C Programming Examples
- C Programming Examples
- C Print Hello World
- C Get Input from User
- C Print Integer
- C Add Two Numbers
- C Add Subtract Multiply Divide
- C Add n Numbers
- C Area Perimeter of Square
- C Area Perimeter of Rectangle
- C Area Circum of Circle
- C Fahrenheit to Celsius
- C Celsius to Fahrenheit
- C Inches to Centimeters
- C Kilogram to Gram
- C Reverse a Number
- C Swap Two Numbers
- C Interchange Numbers
- C Print ASCII Value
- C Print Fibonacci Series
- C Check Palindrome or Not
- C Check Armstrong or Not
- C Find Armstrong Numbers
- C Find nCr and nPr
- C Find Profit Loss
- C Sum of their Square
- C First & Last Digit Sum
- C Sum of All Digit
- C Product of All Digit
- C Print Total Digit in Number
- C Check Perfect Number
- C Find Basic Gross Salary
- C Round Number to Integer
- C Print Series upto n Term
- C Find Factors of Number
- C if-else & Loop Programs
- C Check Even or Odd
- C Check Prime or Not
- C Check Alphabet or Not
- C Check Vowel or Not
- C Check Leap Year or Not
- C Is Reverse Equal Original
- C Make Calculator
- C Add Digits of Number
- Count Positive Negative Zero
- C Largest of Two Numbers
- C Largest of Three Numbers
- C Smallest of Two Numbers
- C Smallest of Three Numbers
- C Find Factorial of Number
- C Find LCM & HCF
- C Find LCM of n Numbers
- C Find HCF of n Numbers
- C Find Arithmetic Mean
- C Find Average, Percentage
- C Find Student Grade
- C Print Table of Number
- C Print Prime Numbers
- C Find Discount Purchase
- C Calculate Parcel Charge
- C Calculate Wage of Labor
- C Print Phone Bill
- C Conversion programs
- C Decimal to Binary
- C Decimal to Octal
- C Decimal to Hexadecimal
- C Binary to Decimal
- C Binary to Octal
- C Binary to Hexadecimal
- C Octal to Decimal
- C Octal to Binary
- C Octal to Hexadecimal
- C Hexadecimal to Decimal
- C Hexadecimal to Binary
- C Hexadecimal to Octal
- C Pattern Programs
- C Pattern Printing Programs
- C Print Diamond Pattern
- C Print Floyd's Triangle
- C Print Pascal's Triangle
- C Array Programs
- C 1D Array Programs
- C Linear Search
- C Binary Search
- C Largest Element in Array
- C Smallest Element in Array
- C Second Largest/Smallest
- C Count Even Odd
- C Array Element at Even
- C Array Element at Odd
- C Print Even Array Elements
- C Print Odd Array Elements
- C Sum/Product of Even/Odd
- C Reverse an Array
- C Insert Element in Array
- C Delete Element from Array
- C Merge Two Arrays
- C Bubble Sort
- C Selection Sort
- C Insertion Sort
- C Print Common Elements
- C 2D Array Programs
- C Add Two Matrices
- C Subtract Two Matrices
- C Transpose a Matrix
- C Multiply Two Matrices
- C Sum All Matrix Elements
- C Largest Element in Matrix
- C Print Row Column Total
- C 3D Array Programs
- C String Programs
- C Print String
- C Find Length of String
- C Compare Two String
- C Copy a String
- C Concatenate String
- C Reverse a String
- C Count Vowels Consonants
- C Replace Vowel in String
- C Delete Vowels from String
- C Delete Word from String
- C Frequency of Character
- C Count Word in String
- C Remove Spaces from String
- C Sort a String
- C Sort String in Alphabetical
- C Sort Words in Ascending
- C Sort Words in Descending
- C Uppercase to Lowercase
- C Lowercase to Uppercase
- C Swap Two Strings
- C Check Anagram or Not
- C Check Palindrome String
- C Print Number in Words
- C Print Successive Character
- C Character without Space
- C Remove Extra Spaces
- C File Programs
- C Read a File
- C Write Content to File
- C Read & Display File
- C Copy a File
- C Merge Two Files
- C Reverse File
- C Count All Character in File
- C List Files in Directory
- C Encrypt & Decrypt a File
- C Delete a File
- C Misc Programs
- Generate Random Numbers
- C Print Date Time
- C Print Message with Time
- C Get IP Address
- C Print Smiling face
- C Pass Array to Function
- Add Two Numbers using Pointer
- C Address of Variable
- C Shutdown Computer
- C Programming Tutorial
- C Tutorial
- C Programming Library
- C Standard Library
- C Programming Test
- C Programming Test
- Give Online Test
- All Test List
C Program to Copy File
In this article, you will learn and get code about copying the content of one file to another in C language. But before going through the program given below, let's first understand about the things that has to be done before performing the copy file operation in C.
Things to do before Program
Before going to the program, let's first do the following things:
- create two files namely codes.txt and cracker.txt
- Place these two files in the same directory where you are going to save the source code file (of copy program in C)
Let's suppose, here we have created a folder named c programs to the parent directory of Documents folder of my computer. Here is the snapshot of the folder named c programs
Because, this is newly created folder. So the folder is empty for now. But I'm going to put some files related to copy file programs
Now it's time to create a file named codes.txt with following content.
this is codescracker.com
And create second file named cracker.txt without any content. Save both file in the same folder as shown in the snapshot given above, that is c programs folder. So the folder now looks like:
If you open both the file, then you will see some content present inside the first file codes.txt whereas the second file, cracker.txt is empty. Now let's move on to the program to copy the content of codes.txt file to cracker.txt file.
Program to Copy one File to Another in C
To copy the content of one file to another in C programming, you have to first open both the file, that is, the source file and the target file. And then start reading the source file's content character by character and place or write the content of source file to target file on every read of character.
The question is, write a program in C that copy the content of one file to another file. The answer to this question is given below:
#include<stdio.h> #include<conio.h> int main() { char ch, fileName1[20], fileName2[20]; FILE *fs, *ft; printf("Enter Source File Name (with extension): "); gets(fileName1); fs = fopen(fileName1, "r"); if(fs == NULL) { printf("\nError in Opening the file, %s", fileName1); getch(); return 0; } printf("Enter Target File Name (with extension): "); gets(fileName2); ft = fopen(fileName2, "w"); if(ft == NULL) { printf("\nError in Opening the file, %s", fileName2); getch(); return 0; } ch = fgetc(fs); while(ch != EOF) { fputc(ch, ft); ch = fgetc(fs); } printf("\nFile copied successfully."); fclose(fs); fclose(ft); getch(); return 0; }
This program was build and run under Code::Blocks IDE. Save the source code of above program in the same directory, that is inside the folder named c programs. To save it, use File->Save file as... navigation inside Code::Blocks. Here we have used codescracker.c as the name of source code file. After saving the source code of above program in the folder c programs present inside the Documents, the folder looks like:
Now it's time to build and run the above program. Here is the sample run:
Now supply the name of first file, codes.txt (source file as created at early of this article inside the same folder where the source code belongs to). Press ENTER key, then again supply the name of another file say cracker.txt (the destination file, where the content of source.txt file is going to be copied). Finally press ENTER key to see the following output:
Here is final snapshot of the folder c programs:
Now if you will open the file cracker.txt (created with empty content at early of this article), then you will see the content of codes.txt file gets copied into it. That's it. To learn more about file input and output operation in C, then refer to File Input/Output in C tutorial.
Same Program in Other Languages
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