Whenever using eina we need to include it: 
In our main function we declare(and initialize) some variables and initialize eina: 
int main(int argc EINA_UNUSED, char **argv EINA_UNUSED)
{
   char *names = "Calvin;Leoben;D'anna;Simon;Doral;Six;Daniel;Sharon";
   char *str;
   char *tmp;
   char *prologue;
   char *part1 = "The Cylons were created by man. They evolved. They rebelled.";
   char *part2 = "There are many copies. And they have a plan.";
   char **arr;
   int i;
   char *time_arr;
   time_t curr_time;
It's frequently necessary to split a string into its constituent parts, eina_str_split() make's it easy to do so: 
   for (i = 0; arr[i]; i++)
     printf("%s\n", arr[i]);
Another common need is to make a string uppercase or lowercase, so let's create a string and make it uppercase and then make it lowercase again: 
   free(arr[0]);
   free(arr);
   
   str = malloc(sizeof(char) * 4);
   strcpy(str, "bsd");
   printf("%s\n", str);
   printf("%s\n", str);
Next we use eina to check if our names string starts or ends with some values: 
      printf("Starts with 'Calvin'\n");
      printf("Ends with 'sharon'\n");
      printf("Has extension 'sharon'\n");
When strings will be used in a terminal(or a number of other places) it necessary to escape certain characters that appear in them: 
Much as we previously split a string we will now join two strings: 
   free(tmp);
   prologue = malloc(sizeof(char) * 106);
   printf("%s\n", prologue);
With strlcpy() we can copy what portion of the prologue fits in str and be sure that it's still NULL terminated: 
Since we are done with prologue and str we should free them: 
   free(prologue);
   free(str);
Finally we see strlcat in action: 
   str = malloc(sizeof(char) * 14);
   sprintf(str, "%s", "cylons+");
   printf("%s\n", str);
And then shut eina down and exit: 
   free(str);
   curr_time = time(NULL);
   info = localtime(&curr_time);
   printf("Today's Date: %s\n", time_arr);
   free(time_arr);
   return 0;
}