merge

+ readline() replace gnl() in here_doc
+ "int error" in struct "t_cmd"

Makefile

@@ -24,7 +24,7 @@ LIBFT_D = ./libft
 LIBFT = $(LIBFT_D)/libft.a
 
 SRCS =	main.c init.c free.c generic.c \
-		signals.c terminal.c \
+		signals.c \
 		shell_loop.c shell_script.c \
 		lexing.c fill_token.c check_operators.c \
 		parsing.c cmd_array.c \
@@ -33,7 +33,7 @@ SRCS =	main.c init.c free.c generic.c \
 		ft_split_quotes.c ft_strdup_quotes.c \
 		redirections.c here_doc.c \
 		exec_cmd_line.c \
-		env.c exit.c echo.c 
+		cd.c pwd.c export.c unset.c exit.c env.c echo.c
 
 DIR_OBJS = builds
 OBJS = $(SRCS:%.c=$(DIR_OBJS)/%.o)