diff --git a/unitests.sh b/unitests.sh
new file mode 100644
index 0000000..2588016
--- /dev/null
+++ b/unitests.sh
@@ -0,0 +1,277 @@
+#!/bin/bash
+cd $(dirname $0)
+
+# COLORS
+	RED="\e[0;31m"
+	GREEN="\e[0;32m"
+	YELLOW="\e[0;33m"
+	BLUE="\e[0;34m"
+	MAGENTA="\e[0;35m"
+	CYAN="\e[0;36m"
+	WHITE="\e[0;37m"
+	
+	B_RED="\e[1;31m"
+	B_GREEN="\e[1;32m"
+	B_YELLOW="\e[1;33m"
+	B_BLUE="\e[1;34m"
+	B_MAGENTA="\e[1;35m"
+	B_CYAN="\e[1;36m"
+	B_WHITE="\e[1;37m"
+	
+	ENDCO="\e[0m"
+
+# copy the executable to current directory
+	cp ../../minishell .
+
+# globale variables
+	UNIT_TEST=0
+	SUCCESS_TEST=0
+	TOTAL_TEST=0
+	TOTAL_SUCCESS=0
+	LINE_NUMBER=0
+	OPTION=0
+	PRINT=0
+	mkdir -p ./logs
+	echo "" > ./logs/bash_log.txt
+	echo "" > ./logs/minishell_log.txt
+	BASH_LOG="./logs/bash_log.txt"
+	MINISHELL_LOG="./logs/minishell_log.txt"
+
+# default list of files to be use
+	default_files="\
+        ut_builtins.sh
+        ut_exit_status.sh
+        ut_expensions.sh
+        ut_heredocs.sh
+        ut_pipes.sh
+        ut_redirections.sh
+        ut_vrac.sh"
+
+# print usage
+	function print_usage
+	{
+		echo -en "$GREEN"
+		echo "        usage :"
+		echo -en "$ENDCO"
+		echo -en "$CYAN"
+		echo "        > bash test_unit.sh [options] [list files...]"
+		echo -en "$ENDCO"
+		echo ""
+		echo -en "$GREEN"
+		echo "        if no files are given in parameters, the defaults will be used"
+		echo "        defaults files :"
+		echo -en "$ENDCO"
+		echo -en "$CYAN"
+		echo "$default_files"
+		echo -en "$ENDCO"
+		echo ""
+		echo -en "$GREEN"
+		echo "        options :"
+		echo -en "$ENDCO"
+		echo -en "$CYAN"
+		echo "        help  - print usage"
+		echo "        -p1   - prints errors"
+		echo "        -p2   - prints errors and commands"
+		echo "        -p3   - prints errors and commands and errors output"
+		echo -en "$ENDCO"
+		echo ""
+		echo -en "$GREEN"
+		echo "        tests files are formated with the following rules :"
+		echo -en "$ENDCO"
+		echo -en "$CYAN"
+		echo "        - a line starting with # is skipped"
+		echo "        - an empty line separate two sets of commands"
+		echo "        - other lines are commands"
+		echo "        - multiples lines in a row are executed as following commands"
+		echo -en "$ENDCO"
+		echo ""
+	}
+
+# check for arguments, like options or files list
+# if no file in arguments, default file list is used
+	list_files="$default_files"
+	if [ $# -gt 0 ]
+	then
+		START=1
+		if [ "$1" == "help" ]
+		then
+			print_usage
+			START=0
+		elif [ "$1" == "-p1" ]
+		then
+			PRINT=1
+			OPTION=1
+		elif [ "$1" == "-p2" ]
+		then
+			PRINT=2
+			OPTION=1
+		elif [ "$1" == "-p3" ]
+		then
+			PRINT=3
+			OPTION=1
+		fi
+		if [ $OPTION -eq 1 ]
+		then
+			if [ $# -eq 1 ]
+			then
+				START=0
+			else
+				START=2
+			fi
+		fi
+		if [ $START -gt 0 ]
+		then
+			list_files=""
+			for (( i = $START ; i <= "$#" ; i++ ))
+			do
+				if [ -e "${!i}" ]
+				then
+					if [ -n "$list_files" ]
+					then
+						list_files+=$'\n'
+					fi
+					list_files+="${!i}"
+				else
+					print_usage
+					echo "        \"${!i}\" is not a valid file or option, see usage above"
+				fi
+			done
+		fi
+	fi
+
+# if print option, print next command
+	function print_next_command
+	{
+		TEXT=$1
+		CMD=$2
+		COLOR=$3
+		INDENT="$(for (( i=1; i<=${#TEXT}; i++ )); do echo -n ' '; done)"
+		echo -en $COLOR"$TEXT"$YELLOW
+		echo -n "${CMD//$'\n'/$'\n'$INDENT}"
+		echo -e $ENDCO
+	}
+
+# function that will launch the command in bash and minishell and compare them
+	function test_minishell
+	{
+		# if -p2|3, print which command is about to be executed
+		if [ $PRINT -gt 1 ]
+		then
+			NEXT_CMD="command line $(( $LINE_NUMBER - 1 )) : "
+			print_next_command "$NEXT_CMD" "$@" "$CYAN"
+		fi
+		# execute commands in bash, and logs results
+		bash_execution=$( echo "$@" | bash 2>/dev/null )
+		echo -e $B_WHITE"\n\n$@\n-----------"$ENDCO >>$BASH_LOG
+		echo "$bash_execution" >> $BASH_LOG
+
+		minishell_execution=$( echo "$@" | ./minishell 2>/dev/null )
+		echo -e $B_WHITE"\n\n$@\n-----------"$ENDCO >>$MINISHELL_LOG
+		echo "$minishell_execution" >> $MINISHELL_LOG
+
+		#compare output
+		if [ "$bash_execution" = "$minishell_execution" ]
+		then
+			(( SUCCESS_TEST++ ))
+			(( TOTAL_SUCCESS++ ))
+		else
+			# if -p1..3 print error for command
+			if [ $PRINT -eq 1 ]
+			then
+				ERROR_CMD="ERROR line $(( $LINE_NUMBER - 1 )), command : "
+				print_next_command "$ERROR_CMD" "$@" "$B_RED"
+			elif [ $PRINT -eq 2 ]
+			then
+				echo -e $B_RED"  "'\'" ERROR"$ENDCO
+			elif [ $PRINT -eq 3 ]
+			then
+				echo -e $B_RED"  "'\'" ERROR"$ENDCO
+				echo -e $B_MAGENTA"[bash execution] :"$ENDCO
+				echo "$@" | bash -i
+				echo ""
+				echo -e $B_MAGENTA"[minishell execution] :"$ENDCO
+				echo "$@" | ./minishell
+				echo ""
+			fi
+		fi
+	}
+
+# function to print the results
+# receive parameters : file name, numerator, denominator
+	function print_results
+	{
+		echo -en $B_WHITE"results for $1 : "$ENDCO
+		if [ $2 -eq 0 ]
+		then
+			echo -en $B_RED $2 $ENDCO
+		elif [ $2 -eq $3 ]
+		then
+			echo -en $B_GREEN $2 $ENDCO
+		else
+			echo -en $B_MAGENTA $2 $ENDCO
+		fi
+		echo -e $B_WHITE"/ $3"$ENDCO
+	}
+
+# the main loop: go through the files and call the compare func on each commands
+# parse tests files line by line, grouping lines non-separated by an empty line
+# if line start with # it's ignore
+	for i in $list_files
+	do
+		filename=$i
+		echo -e "\n"$B_YELLOW"test file : $i"$ENDCO
+		command_test=""
+		LINE_NUMBER=0
+		LAST_LINE_NUMBER=$(wc -l < $filename)
+		UNIT_TEST=0
+		SUCCESS_TEST=0
+		# write name of file in log files
+		echo -en $B_YELLOW "\n\n\nfile: $filename\n" $ENDCO >>$BASH_LOG
+		echo -en $B_YELLOW "\n\n\nfile: $filename\n" $ENDCO >>$MINISHELL_LOG
+		# do the loop
+		while read line
+		do
+			(( LINE_NUMBER++ ))
+			if [ -n "$line" ]
+			then
+				# if line start with # skip it
+				if [ "${line:0:1}" != "#" ]
+				then
+					if [ "$command_test" == "" ]
+					then
+						command_test="$line"
+					else
+						command_test+=$'\n'
+						command_test+="$line"
+					fi
+					if [ $LINE_NUMBER -eq $LAST_LINE_NUMBER ]
+					then
+						(( UNIT_TEST++ ))
+						(( TOTAL_TEST++ ))
+						test_minishell "$command_test"
+					fi
+				fi
+			elif [ -z "$line" ] && [ -n "$command_test" ]
+			then
+				(( UNIT_TEST++ ))
+				(( TOTAL_TEST++ ))
+				test_minishell "$command_test"
+				command_test=""
+			fi
+		done < $filename
+		print_results $i $SUCCESS_TEST $UNIT_TEST
+	done
+
+# print the total results
+	if [ -n "$list_files" ]
+	then
+		echo ""
+		print_results "all" $TOTAL_SUCCESS $TOTAL_TEST
+	fi
+
+# ask to show the diff
+	read -p 'you want to see the diff ? (y?)' DIFF
+	if [[ "${DIFF,,}" =~ y|yes ]]
+	then
+		diff -y --width=100 --color=always "$BASH_LOG" "$MINISHELL_LOG"
+	fi
diff --git a/ut_bonus.sh b/ut_bonus.sh
new file mode 100644
index 0000000..f71d00b
--- /dev/null
+++ b/ut_bonus.sh
@@ -0,0 +1,11 @@
+echo bonjour ; |
+
+echo bonjour |;
+
+;
+
+echo coucou | ;
+
+echo ;;
+
+echo bonjour \; ls
diff --git a/ut_builtins.sh b/ut_builtins.sh
new file mode 100644
index 0000000..e9827e6
--- /dev/null
+++ b/ut_builtins.sh
@@ -0,0 +1,108 @@
+#
+# ENV
+#
+
+env
+
+#
+# EXPORT
+#
+
+export var
+
+export var=test
+
+export var ="cat Makefile | grep >"
+
+export "test=ici"=coucou
+
+export LOL=lala ROR=rara
+
+export "HI= hi"
+
+export "HI =hi"
+
+export
+env
+# display is different for both commands
+
+env
+export
+env
+
+#
+# UNSET
+#
+
+export BLOU=
+env
+unset BLOU
+env
+
+unset LOL ROR
+env
+
+unset blablabla
+env
+
+export ""
+env
+unset ""
+env
+
+#
+# ECHO
+#
+
+echo
+
+echo simple
+
+echo -n simple
+
+echo -n -n -nnnn -nnnnm
+
+#
+# PWD
+#
+
+pwd a
+
+pwd a b c d
+
+#
+# CD
+#
+
+cd
+pwd
+
+cd .
+pwd
+
+cd ~
+pwd
+
+cd /
+pwd
+
+cd no_file
+pwd
+
+cd a b c d
+pwd
+
+cd $HOME/Documents
+pwd
+
+cd ../../../../../..
+pwd
+
+#
+# EXIT
+#
+
+exit -10
+
+exit +10
+
diff --git a/ut_exit_status.sh b/ut_exit_status.sh
new file mode 100644
index 0000000..9a2968f
--- /dev/null
+++ b/ut_exit_status.sh
@@ -0,0 +1,17 @@
+echo $?
+
+cat Makefile | grep pr | head -n 5 | cd test (mybin)
+$?
+
+cat Makefile | grep pr | head -n 5 | cat test (bin)
+$?
+
+cat Makefile | grep pr | head -n 5 | hello (NA)
+$?
+
+cat diufosgid
+$?
+
+exit
+$?
+
diff --git a/ut_expensions.sh b/ut_expensions.sh
new file mode 100644
index 0000000..20c3409
--- /dev/null
+++ b/ut_expensions.sh
@@ -0,0 +1,52 @@
+echo "bip | bip ; coyotte > < \" "
+
+export vat=at
+c$var Makefile
+
+$blablabla
+
+$LESS$VAR
+
+echo '\'
+
+echo "\"
+
+echo "\\"
+
+echo "\n \n \n"
+
+echo "\n \\n \\\n"
+
+echo hi";" hihi
+
+echo hi "   ;   " hihi
+
+echo "\s"
+
+echo "\\s"
+
+echo \>
+
+echo "$HOME"
+
+echo '$HOME'
+
+echo \$HOME
+
+export A="s -la"
+l$A
+
+export A=p
+export B=w
+$A"$B"d
+"$A"'$B'd
+
+echo "ls -la <a | grep x > b"
+
+echo ok "" ok
+
+echo ok "" "" "" "" "" "" "" "" "" ok
+
+export OK="ok                   ok"
+echo $OK
+
diff --git a/ut_heredocs.sh b/ut_heredocs.sh
new file mode 100644
index 0000000..69e931f
--- /dev/null
+++ b/ut_heredocs.sh
@@ -0,0 +1,6 @@
+#!/bin/bash
+
+#cat << EOF
+#hello
+#EOF
+
diff --git a/ut_pipes.sh b/ut_pipes.sh
new file mode 100644
index 0000000..cd17612
--- /dev/null
+++ b/ut_pipes.sh
@@ -0,0 +1,48 @@
+echo bonjour ; |
+
+echo bonjour | |
+
+|
+
+echo bonjour |;
+
+cat Makefile | grep pr | head -n 5 | cd test (mybin)
+
+cat Makefile | grep pr | head -n 5 | cat test (bin)
+
+cat Makefile | grep pr | head -n 5 | hello (NA)
+
+cat | cat | cat | ls
+
+echo hudifg d | | hugdfihd
+
+echo |
+
+| echo
+
+sort | ls
+
+exit 0 | exit 1
+
+exit 1 | exit 0
+
+cat < Makefile | grep gcc > output
+ls
+rm output
+
+rm output
+
+sleep 5 | exit
+
+ls | cat
+
+cat | ls
+
+ulimit -n
+
+ls /proc/self/fd
+
+ls | ls | ls /proc/self/fd
+
+ls | ls | ls | ls | ls | ls /proc/self/fd
+
diff --git a/ut_redirections.sh b/ut_redirections.sh
new file mode 100644
index 0000000..74f3818
--- /dev/null
+++ b/ut_redirections.sh
@@ -0,0 +1,100 @@
+echo bonjour > $test
+ls
+rm '$test'
+
+> log echo coucou
+ls
+rm log
+
+cat < >
+
+cat < <
+
+cat > >
+
+> a ls > b < Makefile
+ls
+rm a b
+
+echo > a Hello World!
+ls
+rm a
+
+> a echo Hello World!
+ls
+rm a
+
+echo bonjour > test\ 1
+ls
+rm test
+
+echo bonjour >>> test
+
+echo bonjour > > out
+ls
+rm out
+
+echo 2 >> out1 > out2
+ls
+rm out1 out2
+
+echo 2 > out1 >> out2
+ls
+rm out1 out2
+
+cat < blablabla
+
+echo test > file test1
+ls
+rm file
+
+not_cmd bonjour > salut
+ls
+rm salut
+
+>testt
+ls
+
+rm testt
+>>testt
+ls
+
+rm testt
+<testt
+ls
+rm testt
+
+touch testt
+<testt
+rm testt
+
+rm testt
+<testt
+rm testt
+
+cat <a <b >c >d
+
+echo hello >a
+echo byebye >b
+cat <a <b >c >d
+cat a
+cat b
+cat c
+cat d
+rm a b c d
+
+
+cat a | < b cat | cat > c | cat
+ls
+rm a b c
+
+echo hello >a
+echo byebye >b
+echo ouf >c
+cat a | < b cat | cat > c | cat
+ls
+cat a
+cat b
+cat c
+rm a b c
+
diff --git a/ut_to_do_manually.sh b/ut_to_do_manually.sh
new file mode 100644
index 0000000..cdfab63
--- /dev/null
+++ b/ut_to_do_manually.sh
@@ -0,0 +1,11 @@
+
+cat /dev/random | head -n 1 | cat -e
+
+ctrl-C . 130 sur bin(ex : sleep 10)&line vide
+
+ctrl-\ .131 sur bin
+
+/bin/ls
+write something the press ctrl+c
+write something then press ctrl+d
+write something then press ctrl+\
diff --git a/ut_vrac.sh b/ut_vrac.sh
new file mode 100644
index 0000000..b6e3588
--- /dev/null
+++ b/ut_vrac.sh
@@ -0,0 +1,32 @@
+$
+
+file_name_in_current_dir
+
+/bin/echo bonjour
+
+not_cmd
+
+echo bonjour > $test w/ t
+ls
+rm '$test'
+
+"exit retour a la ligne"
+
+minishell
+# binary not in path without "./" before
+
+l^Ds
+
+touch testt
+chmod 000 testt
+ls
+./testt
+rm -rf testt
+
+mkdir testt
+./testt
+pwd
+cd ../
+rm -rf testt
+
+cat < ../