diff --git a/42sh/Makefile b/42sh/Makefile
index c211ff0f..2a2c7a0e 100644
--- a/42sh/Makefile
+++ b/42sh/Makefile
@@ -29,7 +29,6 @@ INC_DIR		=	includes/
 OBJ_DIR		=	objs/
 
 SRC_BASE	=	\
-builtin/bt_cd_process_dotdot.c\
 builtin/bt_env_opt.c\
 builtin/bt_read_get.c\
 builtin/bt_read_term.c\
diff --git a/42sh/includes/exec.h b/42sh/includes/exec.h
index 1bf1074b..b14e1d2d 100644
--- a/42sh/includes/exec.h
+++ b/42sh/includes/exec.h
@@ -140,6 +140,7 @@ struct	s_exec
 };
 
 int		exec_reset(void);
+int		exec_destroy(void);
 int		exec_pushfds();
 int		exec_popfds();
 int		process_fork(t_process *p);
diff --git a/42sh/libft/src/sys/open_access.c b/42sh/libft/src/sys/open_access.c
index 40811fe7..bc1ee88e 100644
--- a/42sh/libft/src/sys/open_access.c
+++ b/42sh/libft/src/sys/open_access.c
@@ -23,8 +23,6 @@ int		open_access(char *file, t_flag a_flag, t_flag o_flag, t_flag o_perm)
 	if (access(file, F_OK) == 0 && access(file, a_flag) != 0)
 		return (-ERR_SET(E_SYS_NOPERM, file));
 	if ((fd = open(file, o_flag, o_perm)) < 0)
-	{
 		exit(1);
-	}
 	return (fd);
 }
diff --git a/42sh/src/builtin/bt_cd_process_dotdot.c b/42sh/src/builtin/bt_cd_process_dotdot.c
deleted file mode 100644
index 1d64cd1b..00000000
--- a/42sh/src/builtin/bt_cd_process_dotdot.c
+++ /dev/null
@@ -1,32 +0,0 @@
-/* ************************************************************************** */
-/*                                                                            */
-/*                                                        :::      ::::::::   */
-/*   bt_cd_process_dotdot.c                             :+:      :+:    :+:   */
-/*                                                    +:+ +:+         +:+     */
-/*   By: ariard <ariard@student.42.fr>              +#+  +:+       +#+        */
-/*                                                +#+#+#+#+#+   +#+           */
-/*   Created: 2017/03/25 03:54:22 by ariard            #+#    #+#             */
-/*   Updated: 2017/03/25 21:19:07 by ariard           ###   ########.fr       */
-/*                                                                            */
-/* ************************************************************************** */
-
-#include "minishell.h"
-
-#define CDERR_0		"cd : %s: No such file or directory"
-#define CDERR_1		"cd : %s: Permission denied"
-#define CDERR_2		"cd : %s: Not a directory"
-#define CDERR_3		"cd : unable to proceed: %s"
-
-int			bt_cd_process_dotdot(char *target)
-{
-	if (access(target, F_OK))
-		return (SH_ERR(CDERR_0, target));
-	if (access(target, X_OK))
-		return (SH_ERR(CDERR_1, target));
-	if (!is_directory(target))
-		return (SH_ERR(CDERR_2, target));
-	if (chdir(target))
-		return (SH_ERR(CDERR_3, target));
-	setwd("PWD");
-	return (0);
-}
diff --git a/42sh/src/builtin/builtin_cd.c b/42sh/src/builtin/builtin_cd.c
index 3a8882dd..af086139 100644
--- a/42sh/src/builtin/builtin_cd.c
+++ b/42sh/src/builtin/builtin_cd.c
@@ -19,6 +19,10 @@
 #define CD_USAGE	"usage: cd [-L|-P] [dir]"
 #define CDERR_0		"cd: too many arguments"
 #define CDERR_1		"cd %s not set"
+#define CDERR_2		"cd : %s: No such file or directory"
+#define CDERR_3		"cd : %s: Permission denied"
+#define CDERR_4		"cd : %s: Not a directory"
+#define CDERR_5		"cd : unable to proceed: %s"
 
 static t_cliopts	g_cdopts[] =
 {
@@ -27,43 +31,42 @@ static t_cliopts	g_cdopts[] =
 	{0, NULL, 0, 0, NULL, 0},
 };
 
-static char			*cd_operand_exist(char *arg)
+int			cd_file_autorisations(char *target, int flag)
 {
-	char	*target;
-
-	target = NULL;
-	if (!arg)
-	{
-		if (!(target = ft_strdup(ft_getenv(data_singleton()->env, "HOME"))))
-			SH_ERR(CDERR_1, "HOME");
-	}
-	return (target);
+	(void)flag;
+	if (access(target, F_OK))
+		return (SH_ERR(CDERR_2, target));
+	if (!is_directory(target))
+		return (SH_ERR(CDERR_3, target));
+	if (access(target, X_OK))
+		return (SH_ERR(CDERR_4, target));
+	if (chdir(target))
+		return (SH_ERR(CDERR_5, target));
+	setwd("PWD");
+	return (0);
 }
 
-static char			*cd_operand_begin(char *arg)
+static char			*cd_operand_exist(char *arg)
 {
-	char	*target;
+	char	*tget;
 
-	if (arg && arg[0])
+	tget = NULL;
+	if (!arg)
 	{
-		if (arg[0] == '/')
-			target = ft_strdup(arg);
-		else if (!ft_strncmp(arg, "./", 2) || !ft_strncmp(arg, "../", 3)
-			|| !ft_strcmp(arg, ".") || !ft_strcmp(arg, ".."))
-			target = ft_str3join(ft_getenv(data_singleton()->env,
-				"PWD"), "/", arg);
-		else if (!ft_strcmp(arg, "-"))
-		{
-			if (!(target = ft_strdup(ft_getenv(data_singleton()->env,
-				"OLDPWD"))))
-				SH_ERR(CDERR_1, "OLDPWD");
-		}
-		else
-			target = ft_str3join(".", "/", arg);
+		if (!(tget = ft_strdup(ft_getenv(data_singleton()->env, "HOME"))))
+			return (SH_ERR(CDERR_1, "HOME") ? NULL : NULL);
 	}
 	else
-		target = arg;
-	return (target);
+	{
+		if (!ft_strcmp(arg, "-"))
+		{
+			if (!(tget = ft_strdup(ft_getenv(data_singleton()->env, "OLDPWD"))))
+				return (SH_ERR(CDERR_1, "OLDPWD") ? NULL : NULL);
+			return (tget);
+		}
+		return (tget = ft_strdup(arg));
+	}
+	return (tget);
 }
 
 void				setwd(char *var)
@@ -72,7 +75,7 @@ void				setwd(char *var)
 
 	cwd = getcwd(NULL, 0);
 	builtin_setenv(NULL, (char*[]){"cd", var, cwd, NULL}, NULL);
-	free(cwd);
+	ft_strdel(&cwd);
 }
 
 int					builtin_cd(const char *path, char *const av[],
@@ -86,17 +89,16 @@ int					builtin_cd(const char *path, char *const av[],
 	(void)envp;
 	(void)path;
 	data.flag = CD_OPT_L;
-	ret = 0;
 	if (cliopts_get((char **)av, g_cdopts, &data))
 		return (1);
 	if (data.av_data[0] && data.av_data[1])
 		return (SH_ERR(CDERR_0) && SH_ERR(CD_USAGE));
 	if (!(target = cd_operand_exist(*data.av_data)))
-		target = cd_operand_begin(*data.av_data);
+		return (1);
 	oldpwd = getcwd(NULL, 0);
-	if ((ret = bt_cd_process_dotdot(target)))
+	if (!(ret = cd_file_autorisations(target, data.flag)))
 		builtin_setenv(NULL, (char*[]){"cd", "OLDPWD", oldpwd, NULL}, NULL);
-	free(target);
-	free(oldpwd);
+	ft_strdel(&target);
+	ft_strdel(&oldpwd);
 	return (ret);
 }
diff --git a/42sh/src/builtin/builtin_env.c b/42sh/src/builtin/builtin_env.c
index f2c6284b..73c3f826 100644
--- a/42sh/src/builtin/builtin_env.c
+++ b/42sh/src/builtin/builtin_env.c
@@ -25,10 +25,15 @@ static t_cliopts	g_env_opts[] =
 
 static int			bt_env_getcustom(char ***av, t_env_data *data)
 {
+	char	**split;
+
 	if (!av || !*av || !data)
 		return (1);
 	while (**av && ft_strchr(**av, '='))
 	{
+		split = ft_strsplit(**av, '=');
+		bt_env_opt_u(split[0], data);
+		ft_tabdel(&split);
 		data->custom_env = ft_sstradd(data->custom_env, **av);
 		++(*av);
 	}
diff --git a/42sh/src/exec/exec_reset.c b/42sh/src/exec/exec_reset.c
index b9330b38..0e55431e 100644
--- a/42sh/src/exec/exec_reset.c
+++ b/42sh/src/exec/exec_reset.c
@@ -62,3 +62,19 @@ int			exec_reset(void)
 	jobc->current_id = 1;
 	return (0);
 }
+
+int			exec_destroy(void)
+{
+	int		i;
+	t_jobc	*jobc;
+	t_exec	*exec;
+
+	exec = &data_singleton()->exec;
+	jobc = &data_singleton()->jobc;
+	ft_lstdel(&exec->op_stack, ft_lst_cfree);
+	ft_lstdel(&jobc->first_job, job_free);
+	i = -1;
+	while (++i < 10)
+		ft_lstdel(&exec->fd_save[i], ft_lst_cfree);
+	return (0);
+}
diff --git a/42sh/src/exec/process_launch.c b/42sh/src/exec/process_launch.c
index ac107417..5a0b711b 100644
--- a/42sh/src/exec/process_launch.c
+++ b/42sh/src/exec/process_launch.c
@@ -26,6 +26,7 @@ int		process_fork(t_process *p)
 		exit(1);
 	process_setgroup(p, 0);
 	process_setsig();
+	exec_destroy();
 	exec_reset();
 	data_singleton()->opts &= ~SH_INTERACTIVE;
 	data_singleton()->opts &= ~SH_OPTS_JOBC;
diff --git a/42sh/src/line_editing/print_del_completion/print_and_del.c b/42sh/src/line_editing/print_del_completion/print_and_del.c
index ed0751f1..b52abcd7 100644
--- a/42sh/src/line_editing/print_del_completion/print_and_del.c
+++ b/42sh/src/line_editing/print_del_completion/print_and_del.c
@@ -89,10 +89,10 @@ int			ft_del(char **str, size_t *pos)
 	size_t	tmp;
 
 	tmp = *pos;
+	if (!(*str && *pos < ft_strlen(*str)))
+		return (0);
 	if (!(*str = ft_remove_imput(*str, tmp)))
 		return (-1);
-	if (!(*str && *pos < ft_strlen(*str) + 1))
-		return (0);
 	if (*pos)
 	{
 		--(*pos);
diff --git a/42sh/src/main/data_exit.c b/42sh/src/main/data_exit.c
index 753ea33f..d8911c0f 100644
--- a/42sh/src/main/data_exit.c
+++ b/42sh/src/main/data_exit.c
@@ -19,13 +19,13 @@ void	data_exit(void)
 	data = data_singleton();
 	ft_strdel(&data->line.input);
 	ft_strdel(&data->binary);
-	exec_popfds();
+	/* exec_popfds(); */
 	ft_sstrfree(data->env);
 	ft_sstrfree(data->local_var);
 	ft_sstrfree(data->argv);
 	lexer_destroy(&data->lexer);
 	parser_destroy(&data->parser);
-	ft_lstdel(&data->jobc.first_job, &job_free);
+	exec_destroy();
 	ft_lstdel(&data->lst_func, &tree_func_free);
 	ft_save_termios(-1);
 	ft_free_hash_table();
diff --git a/42sh/src/main/shell_init.c b/42sh/src/main/shell_init.c
index dc2bd6b8..ec68356f 100644
--- a/42sh/src/main/shell_init.c
+++ b/42sh/src/main/shell_init.c
@@ -11,7 +11,9 @@
 /* ************************************************************************** */
 
 #include "minishell.h"
-#define SHELL_USAGE	"42sh [-c command | [<]script] [--no-jobcontrol]"
+#define SHELL_USAGE1	"usage: 42sh [--no-jobcontrol]"
+#define SHELL_USAGE2	"   or  42sh -c command"
+#define SHELL_USAGE3	"   or  42sh script"
 
 static t_cliopts	g_opts[] =
 {
@@ -87,7 +89,10 @@ int					shell_init(int ac, char **av, char **env)
 	if (data_init(ac, av, env) < 0)
 		return (-1);
 	if (cliopts_get(av, g_opts, data))
-		return (ft_perror(NULL) && SH_ERR("usage: %s", SHELL_USAGE));
+		return (ft_perror(NULL)
+				&& SH_ERR("%s", SHELL_USAGE1)
+				&& SH_ERR("%s", SHELL_USAGE2)
+				&& SH_ERR("%s", SHELL_USAGE3));
 	if (!isatty(STDIN) || *data->av_data)
 		data->opts &= ~(SH_INTERACTIVE | SH_OPTS_JOBC);
 	if ((data->fd = get_input_fd(data, NULL)) < 0)