Copy file character by character - C File

C examples for File:File Operation

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  4. File Operation

Description

Copy file character by character

Demo Code

#include <stdio.h>  
#include <stdlib.h>  
  
int main(int argc, char *argv[])  {  
    int byte;  /*ww w. j  a  va  2s. com*/
    FILE * source;  
    FILE * target;  
  
    if (argc != 3){  
        printf("Usage: %s sourcefile targetfile\n", argv[0]);  
        exit(EXIT_FAILURE);  
    }  
      
    if ((source = fopen(argv[1], "rb")) == NULL)  
    {  
        printf("Could not open file %s for input\n", argv[1]);      
        exit(EXIT_FAILURE);  
    }  
  
    if ((target = fopen(argv[2], "wb")) == NULL)  
    {  
        printf("Could not open file %s for output\n", argv[2]);      
        exit(EXIT_FAILURE);  
    }  
  
    while ((byte = getc(source)) != EOF)  
    {  
        putc(byte, target);  
    }  
    if (fclose(source) != 0)  
        printf("Could not close file %s\n", argv[1]);  
  
    if (fclose(target) != 0)  
        printf("Could not close file %s\n", argv[2]);  
          
    return 0;  
}

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