copy file

copy file

1. 소스

#include <stdio.h>
#include <stdlib.h>

int main()
{
    char ch;
    char source_file[20] = "source.txt";
    char target_file[20] = "target.txt";
    FILE *source, *target;


    source = fopen(source_file, "r");

    if( source == NULL )
    {
        exit(EXIT_FAILURE);
    }


    target = fopen(target_file, "w");

    if( target == NULL )
    {
        fclose(source);
        exit(EXIT_FAILURE);
    }

    while( ( ch = fgetc(source) ) != EOF )
        fputc(ch, target);

    printf("File copied successfully.\n");

    fclose(source);
    fclose(target);

   return 0;
}

2. 결과

gcc -o copy_file copy_file.c

hacker@HACKER:~/c$ ./copy_file
File copied successfully.