A program to show hw system call will work

/*A program to represent system call*/

#include<stdio.h>

#include<system.h>

//#include<sys/types.h>

#include<stdlib.h>

int main()

{

system("./ul");//make only a system call & give its argument as alredy compiled file ..using make command a.out may be given but when we execute current program using gcc ..../a.out file will be changed ..so avoid using it.....in argument ..give whole path of compiled file which has to execute in current program...    

// . represents current directory

//  .. represents parent directory

return 0;

}