Count character in a file - C File

C examples for File:File Read

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Description

Count character in a file

Demo Code

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

int main(int argc, char *argv[])
{
   char character;
   int ch;//from  w w  w  .  j  a  va  2  s .  co m

   character = 'c';

   FILE * fp;
   int counts[3];
   for (int i = 2; i < argc; i++)
   {
      counts[i - 2] = 0;
      if ((fp = fopen(argv[i], "r")) == NULL)
      {
         fprintf(stderr, "Can't open file %s\n", argv[i]);
         continue;
      }

      while ((ch = getc(fp)) != EOF)
         if (ch == character)
            counts[i - 2]++;

      fclose(fp);
   }

   printf("Character count for %c in ...\n", character);
   for (int i = 2; i < argc; i++)
      printf("%s: \t\t%d\n", argv[i], counts[i - 2]);

   
   return 0;
}

Result


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