#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <signal.h>

void kill_son(int){
	if
int main(int argc, char **argv){
	if (argc < 3){
		printf("Usage : %s <nbsec> <com> [arg]", argv[0]);
		return EXIT_FAILURE;
	}
	int secondes = (int) strtod(argv[1], NULL);
	pid_t p;
	p = fork();
	switch(p){
		case 0 :

			execl("/usr/bin/sh" , "-c", argv[2]) 
		case -1:

		default: