diff --git a/README.md b/README.md
deleted file mode 100644
index fd0a233..0000000
--- a/README.md
+++ /dev/null
@@ -1,40 +0,0 @@
-# Minishell
-
-Minishell is a 42 School project that involves creating a minimalistic shell in C language. The shell should be able to handle basic commands, manage environment variables and implement several built-in functions.
-
-## Features
-
-- Prompt management (display, editing, history)
-- Command execution (with or without arguments)
-- Basic shell operations (pipes, redirections)
-- Environment variables management (listing, setting, unsetting)
-- Built-in functions management (echo, cd, env, exit, export, pwd, unset)
-
-## Getting started
-
-1. Clone this repository: `git clone https://github.com/<your_username>/minishell.git`
-2. `cd` into the cloned directory: `cd minishell`
-3. Run the `make` command to compile the program: `make`
-4. Start the shell by running the executable: `./minishell`
-
-## Usage
-
-Once the shell is started, you can enter commands as you would with any other shell. The following are some examples of commands that can be executed:
-
-- Display the working directory: `pwd`
-- Change directory: `cd <directory_name>`
-- Print the value of an environment variable: `echo $<variable_name>`
-- Set an environment variable: `export <variable_name>=<value>`
-- Unset an environment variable: `unset <variable_name>`
-- Display a list of environment variables: `env`
-- Exit the shell: `exit`
-
-## Resources
-
-- ![The project subject](./subject.pdf)
-- The C library documentation for the standard library functions used in the program
-- bash man
-
-## Authors
-
-This project was created by [Camille CHAUVET](mailto:camille@chauvet.pro) and [Xamora](mailto:ogame.xamora@42l.fr). If you have any questions or suggestions, feel free to contact us.
\ No newline at end of file
diff --git a/builtins/builtins_private.h b/builtins/builtins_private.h
index 693078d..0d39bf3 100644
--- a/builtins/builtins_private.h
+++ b/builtins/builtins_private.h
@@ -6,7 +6,7 @@
 /*   By: cchauvet <cchauvet@student.42angouleme.fr  +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2023/03/27 13:41:42 by cchauvet          #+#    #+#             */
-/*   Updated: 2023/03/27 13:41:44 by cchauvet         ###   ########.fr       */
+/*   Updated: 2023/03/31 20:07:36 by erey-bet         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
diff --git a/builtins/unset.c b/builtins/unset.c
index 37d3f53..1b04514 100644
--- a/builtins/unset.c
+++ b/builtins/unset.c
@@ -6,7 +6,7 @@
 /*   By: erey-bet <marvin@42.fr>                    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2023/02/22 13:28:27 by erey-bet          #+#    #+#             */
-/*   Updated: 2023/03/30 15:07:10 by erey-bet         ###   ########.fr       */
+/*   Updated: 2023/04/07 12:46:28 by erey-bet         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -16,7 +16,7 @@ int	error(char *str, int fd)
 {
 	write(fd, "bozoshell: unset: `", 19);
 	write(fd, str, ft_strlen(str));
-	write(fd, "': not a valid identifier", 25);
+	write(fd, "': not a valid identifier\n", 26);
 	return (1);
 }
 
diff --git a/env/env3.c b/env/env3.c
index 5c058ab..38462f2 100644
--- a/env/env3.c
+++ b/env/env3.c
@@ -6,7 +6,7 @@
 /*   By: erey-bet <marvin@42.fr>                    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2023/02/17 17:25:09 by erey-bet          #+#    #+#             */
-/*   Updated: 2023/03/30 12:51:54 by erey-bet         ###   ########.fr       */
+/*   Updated: 2023/04/07 13:21:54 by erey-bet         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -70,6 +70,7 @@ int	delete_by_key(char *key, t_list **head)
 	t_list	*current;
 
 	current = *head;
+	last = NULL;
 	while (current->next != NULL)
 	{
 		if (ft_strcmp(((t_env *)current->content)->key, key) == 0)
@@ -77,7 +78,7 @@ int	delete_by_key(char *key, t_list **head)
 			free(((t_env *)current->content)->key);
 			free(((t_env *)current->content)->value);
 			free(current->content);
-			if (last->next != NULL)
+			if (last && last->next)
 				last->next = current->next;
 			else
 				*head = current->next;
diff --git a/subject.pdf b/subject.pdf
deleted file mode 100644
index e3ed01f..0000000
Binary files a/subject.pdf and /dev/null differ
diff --git a/vsupp b/vsupp
deleted file mode 100644
index 1b3bbf6..0000000
--- a/vsupp
+++ /dev/null
@@ -1,15 +0,0 @@
-{
-   readline
-   Memcheck:Leak
-   ...
-   fun:readline
-   ...
-}
-
-{
-   readline
-   Memcheck:Leak
-   ...
-   fun:add_history
-   ...
-}