Question

Write a C program to find out the number of words in an input text file (in.txt). Also, make a copy of the input file.

Solve in C programming.

Answer 1

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

int main(){
        char ch,path[50],cpath[50];
        FILE *file,*cfile;
        int count=0;
        
        //Enter the source path of the file
        printf("Enter source file path: ");
    scanf("%s", path);

        
        
        file=fopen(path,"r"); 
        
        if (file == NULL)
    {
        printf("\nUnable to open file.\n");
        printf("Please check if file exists and you have read privilege.\n");

        return 0;
    }
        
        //Gets each character till end of file is reached  
    while((ch = fgetc(file)) != EOF){  
        //Counts each word  
        if (ch == ' ' || ch == '\t' || ch == '\n' || ch == '\0')
                count++;
    } 
        printf("\nNumber of words given in the text file is : %d\n",count+1);
        fclose(file);
        
        
    //Give a file name to the copied file
    printf("\nEnter the name of the new file :");
    scanf("%s",cpath);
    
    //if file not present, automatically file gets created
    cfile=fopen(cpath,"w");
    file=fopen(path,"r");
    while ((ch = fgetc(file)) != EOF)
      fputc(ch, cfile);

    printf("\nCopy of file created\n");
        //closing both files
        
    fclose(file);
    fclose(cfile);
    
    return 0;
}

OUTPUT:

I have created a text fie named "in" in my dekstop. Then with the given code i have made a copy of "in" file into "copy_in" file