In this program, we will use the strtok() function. This function is used to split the string and get words from a specified string based on a specified delimiter.

Program:

The source code to split the string using the strtok() function is given below. The given program is compiled and executed using GCC compile on UBUNTU 18.04 OS successfully.

// C program to split string 
// using strtok() function

#include <stdio.h>
#include <string.h>

int main()
{
    char str[32] = "www.includehelp.com";
    char* word;
    char delim[2] = ".";

    //Get first word from string.
    word = strtok(str, delim);

    while (word != NULL) {
        printf("%s\n", word);
        word = strtok(NULL, delim);
    }

    return 0;
}

Output:

www
includehelp
com

Explanation:

In the main() function, we created a string str initialized with "www.includehelp.com". Then we split the string based on dot (.) delimiter using the strtok() function and printed the words on the console screen.