C program to shutdown or turn off computer:

C program to shutdown or turn off 

computer:

#include <stdio.h>

#include <stdlib.h>

main ()

{

char ch ;

printf ("Do you want to shutdown your computer now (y/n) \n ");

scanf ( "%c" ,&ch);

if (ch == 'y' || ch == 'Y')

system("C:\\WINDOWS\\System32\\shutdown -s"); // WindowsXP

//system("C:\\WINDOWS\\System32\\shutdown /s"); //Windows7

//system("shutdown -P now"); //Ubuntu Linux

return 0;

}

Note: To restart You can use /r instead of /s  .