Write a program to check whether a given word exists in a file or not. If yes then find the number of times it occurs.

Dr. A.P.J. Abdul Kalam Technical University, Lucknow

KCS101 / KCS201 Programming for Problem Solving - Using C Language

Lab Exercises

32. Write a program to check whether a given word exists in a file or not. If yes then find the number of times it occurs.

/*

 File: Prgrm32.c

 Author: Aditya Saini

 Date: Sept 30, 2019

 Description: Program to find the number of occurrences of the given word in a file.

*/

#include <stdio.h>

#include <string.h>

int main (void)

{

               FILE *f_ptr;
               char path [256];
               char word [20];
               char string [20];
               int count;

               //Input file path.
               printf ("Input path: ");
               scanf ("%s", path);

               //Try to open file
               f_ptr = fopen (path, "r");
               if (f_ptr == NULL)
               {
                              printf ("Error! Unable to open the file.");
                              return -1;
               }

               //Input word
               printf ("Input word to find: ");
               scanf ("%s", word );

               //Finding the number of occurrences of the given word
               while (! feof (f_ptr))
               {
                              fscanf (f_ptr, "%s", string);
                              if (strcmp (string, word ) == 0)
                              {
                                             count++;
                              }
               }

               //Output the result.
               printf ("Word \"%s\" is occurs %d times in the file.", word , count);
               fclose (f_ptr);

               return 0;

};

Output

Input path: Prgrm32.c
Input word to find: word
Word "word" occurs 8 times in the file.