diff --git a/srcs/main.c b/srcs/main.c
index 3479912..faac772 100644
--- a/srcs/main.c
+++ b/srcs/main.c
@@ -6,7 +6,7 @@
 /*   By: lperrey <lperrey@student.42.fr>            +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2021/10/04 05:59:26 by lperrey           #+#    #+#             */
-/*   Updated: 2021/10/17 22:10:48 by hulamy           ###   ########.fr       */
+/*   Updated: 2021/10/18 08:59:59 by hulamy           ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -30,6 +30,8 @@ int	**create_pipes(int nb)
 	int	**pipes_fd;
 	int	i;
 
+	if (!nb)
+		return (NULL);
 	pipes_fd = calloc(nb, sizeof(int *));
 	i = 0;
 	while(i < nb)
@@ -42,12 +44,30 @@ int	**create_pipes(int nb)
 	return (pipes_fd);
 }
 
+void	cmd_execution(t_all *c, int **pipes_fd, int nb_pipes, char *line_input)
+{
+	pid_t	pid;
+
+	(void)pipes_fd;
+	if (!nb_pipes)
+		return ;
+	pid = fork();
+	if (pid == 0) // child
+	{
+		if (!ft_strncmp(line_input, "sleep ", 5))
+			execve("/bin/sleep", ft_split(line_input, ' '), c->envp);
+	}
+	if (pid > 0) // parent
+	{
+		wait(0);
+	}
+}
+
 void	shell_loop(t_all *c)
 {
 	char	*line_input;
 	int		nb_pipes;
 	int		**pipes_fd;
-//	pid_t	pid;
 
 	line_input = NULL;
 	while (1)
@@ -59,10 +79,7 @@ void	shell_loop(t_all *c)
 		{
 			nb_pipes = count_pipes(line_input);
 			pipes_fd = create_pipes(nb_pipes);
-			//pid = fork();
-			if (!ft_strncmp(line_input, "sleep ", 5))
-				execve("/bin/sleep", ft_split(line_input, ' '), c->envp);
-			write(1, "t", 1);
+			cmd_execution(c, pipes_fd, nb_pipes, line_input);
 
 //			if (!ft_strncmp(line_input, "env", 4)) // temp placeholder
 //				builtin_env(0, NULL, c);