generic.c file split

Makefile

@@ -42,6 +42,8 @@ SRCS =	main.c \
 		cd.c pwd.c export.c unset.c exit.c env.c echo.c \
 		generic.c \
 		ft_split_quotes.c ft_strdup_quotes.c \
+		ft_strjoinfree.c ft_lst_func.c ft_isinset_str.c ft_is_posix_name.c \
+		ft_getenv.c ft_free_null.c ft_2d_arr_func.c \
 
 DIR_OBJS = builds
 OBJS = $(SRCS:%.c=$(DIR_OBJS)/%.o)