Write a C program which copies one file to another.
(Note: The file name and n are specified on the command line.)
Algorithm:
Step 1: Start Step 2: read command line arguments Step 3: check if no of arguments = 3 or not. If not print invalid no of arguments Step 4: open source file in read mode Step 5: if NULL pointer, then print source file can not be open Step 6: open destination file in write mode Step 7: if NULL pointer, then print destination file can not be open Step 8 : read a character from source file and write to destination file until EOF Step 9: close source file and destination file Step 10: Stop
Program:
#include <stdio.h> #include <conio.h> void main() { FILE *f1, *f2; char c; clrscr(); printf(“Enter the data to the file1.txt file \n”); f1 = fopen(“file1.txt”, “w”); while((c = getchar()) != EOF) putc(c, f1); fclose(f1); f2 = fopen(“file2.txt”, “w”); f1 = fopen(“file1.txt”, “r”); while((c = getc(f1)) != EOF) putc(c,f2); fclose(f1); fclose(f2); printf(“after copying the data in file2.txt file is \n”); f2 = fopen(“file2.txt”, “r”); while((c = getc(f2)) != EOF) printf(“%c”, c); fclose(f2); getch(); }
Input & Output:
Enter the data to the file1.txt file STUDENT BOX OFFICE.IN After copying the data in file2.txt file is STUDENT BOX OFFICE.IN
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UpdatedOct 21, 2014
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