File Operations 

This example shows how to check whether a file exist or not and writing text strings to file.

File Name  :   source/C/advanced/file_ops.c  Author  :   Sudhakar KV Email  :   kvenkatasudhakar@gmail.com

view sourceprint? 01 #include <stdio.h> 02 #include <io.h> 03 #include <conio.h> 04   05 int main(void) 06 { 07    int status; 08    char * file_path = "C:\\file_ops.txt"; 09   10    //Check whether file exists   11    status = access(file_path, 0); 12    if (status == 0) { 13       printf("File (%s) exists\n", file_path); 14    } else { 15       printf("File (%s) doesn't exist\n", file_path); 16    } 17   18    //Write to file 19    FILE *fp = fopen(file_path, "w"); 20    fprintf(fp, "BE THE CODER"); 21   22    //Check whether file exists 23    status = access(file_path, 0); 24    if (status == 0) { 25       printf("File (%s) exists\n", file_path); 26    } else { 27       printf("File (%s) doesn't exist\n", file_path); 28    } 29   30    fclose(fp); 31      32    getch(); 33    return 0; 34 }

File (C:\file_ops.txt) doesn't exist
File (C:\file_ops.txt) exists