diff --git a/README.md b/README.md
index 9bbbe2b..6a93dea 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,31 @@
-macosx-script-boot-shutdown
+MacOsx-script-boot-shutdown
 ===========================
 
-This configuration is useful when you need to execute a shell script at Mac OS X boot or shutdown.
+This configuration is useful when you need to execute a shell script or command at Mac OS X boot or shutdown.
+
+# Automatic Install and or Uninstall with install.sh
+
+install.sh Is a user ineractif script to be runned as super user. How to use :
+- open terminal
+- type : cd ~
+- type : git clone https://github.com/christophecvr/macosx-script-boot-shutdown
+- type : sudo macosx-script-boot-shutdown/install.sh
+
+The script will install the files:
+
+- boot-shut-down-script.plist in path /Library/LaunchDaemons also adapt the target paths into the plist file.
+- boot-shutdown.sh in path /library/Scripts this path can be adapted by user during install.
+- log path location /Library/Logs this path can be adapted by user during install.
+
+After the install is completed the script will be loaded
+
+This installscript will also check on previous installation. 
+Give the user the oportunity to stop or choose to remove the service from you're system.
+Then the user will be asked to reinstall or not.
+After the Install,Uninstall or Reinstall is done you will be asked to remove or not the
+git repo from you're pc.
+
+# Manual Install
 
 There are two files:
 
@@ -35,6 +59,15 @@ When RunAtLoad is set to false, after the load you must start and stop the scrip
     sudo launchctl start BOOT.SHUTDOWN.SERVICE
     sudo launchctl stop BOOT.SHUTDOWN.SERVICE
 
+# After changing file boot-shutdown.sh
+
+unload and reload the service in order to have changes directly applied
+- open terminal
+- type : sudo launchctl unload -w /Library/LaunchDaemons/boot-shutdown-script.plist
+- type : sudo launchctl load -w /Library/LaunchDaemons/boot-shutdown-script.plist
+
+Alternatively just restart(reboot) twice and You're changes should be in effect.
+
 ## Useful links
 
 - [Daemons and Services Programming Guide][1]
diff --git a/boot-shutdown.sh b/boot-shutdown.sh
index 716f898..4e33d5f 100755
--- a/boot-shutdown.sh
+++ b/boot-shutdown.sh
@@ -25,7 +25,6 @@ function startup()
 }
 
 trap shutdown SIGTERM
-trap shutdown SIGKILL
 
 startup;
 
diff --git a/install.sh b/install.sh
new file mode 100755
index 0000000..5287c35
--- /dev/null
+++ b/install.sh
@@ -0,0 +1,360 @@
+#!/bin/bash
+
+# Author christophecvr christophevanr@gmail.com
+# 2024/01/14
+if [ -z "$SUDO_USER" ];then
+  echo "########################################################"
+  echo "###### This instal script must be launched with sudo "
+  echo "###### Retry with sudo <script>"
+  echo "########################################################"
+  exit
+fi
+
+# some default locations
+PLIST_PATH="/Library/LaunchDaemons"
+SCRIPTS_PATH="/Library/Scripts"
+LOGS_PATH="/Library/Logs"
+
+GIT_REPO_DIR="$PWD"
+#echo $GIT_REPO_DIR
+if [ "`echo "$GIT_REPO_DIR" | grep -o "macosx-script-boot-shutdown"`" != "macosx-script-boot-shutdown" ]; then
+  # echo "$PWD This is not the git repo directory"
+  GIT_REPO_LOC=`echo "/$0" | sed s/"\.\/"//g | sed s/"install.sh"//g | sed 's/\/*$//g'`
+  GIT_REPO_DIR="$PWD$GIT_REPO_LOC"
+  #echo "$GIT_REPO_DIR But this should be the git repo"
+fi
+
+# When using sudo the $HOME path remains that of user who is installing.
+cd $HOME
+if [ -f "$GIT_REPO_DIR/boot-shutdown-script.plist" ] && [ -f "$GIT_REPO_DIR/boot-shutdown.sh" ];then
+  echo "git is ok install or uninstall can go"
+else
+  echo "Could not find the files to install or uninstall aborting process"
+  exit
+fi
+
+function rmgitrepo()
+{
+  echo ""
+  echo "####################################################################################"
+  echo "### Install,Uninstall and or reinstall is done"
+  echo "### Or you aborted installation"
+  echo "### Do You wan't to remove the cloned git repository:"
+  echo "### $GIT_REPO_DIR  ?"
+  echo "### Answer Yes or No ***** !!! Default is NO !!! ******"
+  echo "####################################################################################"
+  echo ""
+  read ANSWER
+  if [ "$ANSWER" == "Yes" ] || [ "$ANSWER" == "yes" ];then
+    rm -rf $GIT_REPO_DIR
+    echo ""
+    echo "################################################################################"
+    echo "### GIT repository macosx-script-boot-shutdown is removed from you're pc"
+    echo "################################################################################"
+  fi
+}
+
+echo ""
+echo "########################################################################"
+echo "### Git repository macosx-script-boot-shutdown is cloned and found"
+echo "### I ask you some questions "
+echo "### "
+echo "### Git repo path: $GIT_REPO_DIR"
+echo "### You're home path: $HOME"
+echo "### The Installing user (You): $SUDO_USER"
+echo "###"
+echo "### Are the mentioned paths above right ? Yes/No  default Yes"
+echo "########################################################################"
+echo ""
+read ANSWER
+if [ "$ANSWER" == "No" ] || [ "$ANSWER" == "no" ];then
+  echo ""
+  echo "#############################################################################"
+  echo "### You answered No are you shure the info is wrong ? You always can retry"
+  echo "### If the info is not the right one automatic installation is not posible"
+  echo "### Aborting installation"
+  echo "#############################################################################"
+  echo ""
+  echo ""
+  exit
+fi
+ANSWER=""
+echo ""
+
+TEST_PREVIOUS_INSTALL=`launchctl list BOOT.SHUTDOWN.SERVICE 2>/dev/null | grep -o BOOT.SHUTDOWN.SERVICE`
+if [ "$TEST_PREVIOUS_INSTALL" == "BOOT.SHUTDOWN.SERVICE" ];then
+  SERVICE="loaded"
+  echo "Service Loaded"
+fi
+if [ -f "/Library/Logs/boot-shutdown-script-install.log" ];then
+  echo "installog found"
+  INSTALLED_SCRIPTS_PATH=`grep "SCRIPTS_PATH" /Library/Logs/boot-shutdown-script-install.log | sed s/"SCRIPTS_PATH = "//g`
+  # echo $INSTALLED_SCRIPTS_PATH
+  INSTALLED_LOGS_PATH=`grep "LOGS_PATH" /Library/Logs/boot-shutdown-script-install.log | sed s/"LOGS_PATH = "//g`
+  # echo $INSTALLED_LOGS_PATH
+  if [ -f $PLIST_PATH/boot-shutdown-script.plist ] && [ -f $INSTALLED_SCRIPTS_PATH/boot-shutdown.sh ];then
+    SERVICE="$SERVICE""installed"
+    echo "Service installed"
+    echo "########################################################################################################"
+    echo "### !!! If You wan't to reinstall this service after uninstalling do You wan't to keep You're path's !!!"
+    echo "###"
+    echo "### PLIST_PATH = $PLIST_PATH"
+    echo "### SCRIPTS_PATH = $INSTALLED_SCRIPTS_PATH"
+    echo "### LOGS_PATH = $INSTALLED_LOGS_PATH"
+    echo "###"
+    echo "### Yes or No ? default is No. By default MacOs default paths will be used."
+    echo "########################################################################################################"
+    echo ""
+    read KEEP_PATHS
+    if [ "$KEEP_PATHS" == "Yes" ];then
+      SCRIPTS_PATH="$INSTALLED_SCRIPTS_PATH"
+      LOGS_PATH="$INSTALLED_LOGS_PATH"
+      echo "paths changed to those from previous installation"
+      KEEP_PATHS=""
+    fi
+  else
+    echo ""
+    echo "##############################################################################################"
+    echo "### I did found a previous installog but no installation removing the installlog"
+    echo "##############################################################################################"
+    rm -f /Library/Logs/boot-shutdown-script-install.log
+  fi
+else
+  # echo "No installog found try to find installation on default locations"
+  if [ -f $PLIST_PATH/boot-shutdown-script.plist ] && [ -f $SCRIPTS_PATH/boot-shutdown.sh ];then
+    echo "Did found installation on default location whitout installog"
+    SERVICE="$SERVICE""installed"
+    INSTALLED_SCRIPTS_PATH=$SCRIPTS_PATH
+    INSTALLED_LOGS_PATH=$LOGS_PATH
+  else
+    if [ -f $PLIST_PATH/boot-shutdown-script.plist ];then
+      echo ""
+      echo "################################################################################################################"
+      echo "##### ****** !!! A $PLIST_PATH/boot-shutdown-script.plist is found !!!!!********"
+      echo "##### This script does not find the boot-shutdown.sh file ."
+      echo "##### Most probably You did previousely a manual installation"
+      echo "##### Or used this script with non standard paths and removed the /Library/Logs/boot-shutdown-script-install.log"
+      echo "##### If so first remove that installation manualy before using this script"
+      echo "##### Uninstall and or Install process aborted"
+      echo "################################################################################################################"
+      echo "" 
+      exit
+    fi   
+  fi
+fi
+if [ "$SERVICE" == "loadedinstalled" ] || [ "$SERVICE" == "installed" ];then
+  echo ""
+  echo "#########################################################################################################"
+  echo "### A previous installation is found"
+  echo "### By uninstalling you're changes into boot-shutdown.sh will be lost"
+  echo "### Do you wan't to continu ? Yes or No default Yes"
+  echo "#########################################################################################################"
+  echo ""
+  read ANSWER
+  if [ "$ANSWER" == "No" ] || [ "$ANSWER" == "no" ];then
+    echo ""
+    echo "###########################################################################################"
+    echo "###*** You selected to STOP the Install/Uninstalling process ***"
+    echo "###########################################################################################"
+    echo ""
+    exit
+  fi    
+  if [ "$SERVICE" == "loadedinstalled" ];then
+    launchctl unload -w $PLIST_PATH/boot-shutdown-script.plist
+    echo "unloading service"
+  fi
+  echo "removing previous installation"
+  rm -f $PLIST_PATH/boot-shutdown-script.plist
+  rm -f $INSTALLED_SCRIPTS_PATH/boot-shutdown.sh
+  if [ -f "$INSTALLED_LOGS_PATH/boot-shutdown.log" ];then
+    rm -f $INSTALLED_LOGS_PATH/boot-shutdown.log
+  fi
+  if [ -f "$INSTALLED_LOGS_PATH/boot-shutdown.err" ];then
+    rm -f $INSTALLED_LOGS_PATH/boot-shutdown.err
+  fi
+  echo ""
+  echo "############################################################################################################"
+  echo "### Previous installation has been unloaded and removed"
+  echo "### Do you wan't to reinstall the service Yes or No !!!*** Default is Yes ***!!!"
+  echo "############################################################################################################"
+  echo ""
+  read ANSWER
+  if [ "$ANSWER" == "No" ] || [ "$ANSWER" == "no" ];then
+    if [ -f "/Library/Logs/boot-shutdown-script-install.log" ];then
+      rm -f "/Library/Logs/boot-shutdown-script-install.log"
+    fi
+    echo ""
+    echo "#########################################################"
+    echo "### You selected to NOT Reinstall The service"
+    echo "### Previous installation is removed"
+    echo "#########################################################"
+    rmgitrepo
+    exit
+  fi
+else
+  if [ "$SERVICE" == "loaded" ];then
+    echo ""
+    echo "################################################################################################################"
+    echo "##### ****** !!! A LOADED BOOT.SHUTDOWN.SERVICE has been found but no installation !!! ********"
+    echo "##### This script does not find the installation self."
+    echo "##### Most probably You did previousely a manual installation"
+    echo "##### Or used this script with non standard paths and removed the /Library/Logs/boot-shutdown-script-install.log"
+    echo "##### If so first remove that installation manualy before using this script"
+    echo "##### Uninstall and or Install process aborted"
+    echo "################################################################################################################"
+    echo ""
+    exit
+  fi
+fi
+
+echo ""
+echo "###################################################################################################"
+echo "### This boot-shutdown-script is a system wide script and is a Launchdaemon."
+echo "### It will perform the command or scripts You insert in the boot-shutdown.sh"
+echo "### All actions are done with Superuser autorithy so be carrefull with what you do"
+echo "### This script will install the files boot-shutdown.sh and boot-shutdown-script.plist on MacOs(x)"
+echo "### Default locations for running superuser autorithy commands,programs and scripts."
+echo "### For security reasons it is best to keep them since it is much less unsafe then using You're HOME DIR"
+echo "### The owner ship of installed files will all be system (root) also the boot-shutdown.sh"
+echo "### !!!! IF you set the boot-shutdown.sh in a directory or subdirectory of $HOME"
+echo "### The file owner becomes You : $SUDO_USER !!!!"
+echo "### To edit the boot-shutdown.sh you will need to use a script file editor who can run with sudo"
+echo "### On board you all have the vi editor, can be used with sudo vi boot-shutdown.sh"
+echo "### Or others script file editors such as gedit as a Linux user my favorite"
+echo "### I well will give you the opportunity to change the locations off"
+echo "### boot-shutdown.sh scriot file and logs files"
+echo "### Use only full hard target paths if You change one of the locations"
+echo "### ###############################################################################################"
+echo ""
+echo "######################################################################################################"
+echo "### $SCRIPTS_PATH = The default boot-shutdown.sh location Do You wan't to change it ? Yes/No default No"
+echo "######################################################################################################"
+read ANSWER
+if [ "$ANSWER" == "Yes" ];then
+  echo "#########################################################################################"
+  echo "### Insert the wanted Location"
+  echo "!!!! If You set it in directory $HOME/ and above"
+  echo "The user owner off file will become You:  $SUDO_USER !!!"
+  echo "#########################################################################################"
+  read ANSWER
+  if [ -d "$ANSWER" ];then
+    SCRIPTS_PATH="$ANSWER"
+  else
+    echo ""
+    echo "############################################################################################"
+    echo "### Not a correct path keeping default $SCIPTS_PATH"
+    echo "############################################################################################"
+  fi
+  ANSWER=""
+fi
+echo ""
+echo "###########################################################################################################"
+echo "### $LOGS_PATH = The default log location. Do You wan't to change it ? Yes/No default No"
+echo "###########################################################################################################"
+read ANSWER
+if [ "$ANSWER" == "Yes" ];then
+  echo "#############################################"
+  echo "### Insert the wanted location"
+  echo "#############################################"
+  read ANSWER
+  if [ -d "$ANSWER" ];then
+    LOGS_PATH="$ANSWER"
+  else
+    echo ""
+    echo "################################################################"
+    echo "### Not a correct path keeping default $LOGS_PATH"
+    echo "################################################################"
+  fi
+  ANSWER=""
+fi
+echo ""
+echo "############################################################################"
+echo "### The current install paths are:"
+echo "###"
+echo "### $PLIST_PATH plist file"
+echo "### $SCRIPTS_PATH script-files"
+echo "### $LOGS_PATH Log files"
+echo "###"
+echo "### If You're happy with the paths we can proceed with the installation"
+echo "### Do You wan't to proceed Yes/No default Yes"
+echo "#############################################################################"
+
+read ANSWER
+if [ "$ANSWER" == "No" ];then
+  echo ""
+  echo "#######################################################"
+  echo "#### You Aborted The Installation"
+  echo "#######################################################"
+  exit
+fi
+
+cp -f "$GIT_REPO_DIR/boot-shutdown-script.plist" "$PLIST_PATH"
+cp -af "$GIT_REPO_DIR/boot-shutdown.sh" "$SCRIPTS_PATH"
+if [ "`echo $SCRIPTS_PATH | grep -o "$SUDO_USER"`" == "$SUDO_USER" ];then
+  chown $SUDO_USER "$SCRIPTS_PATH/boot-shutdown.sh"
+else
+  chown $USER "$SCRIPTS_PATH/boot-shutdown.sh"
+fi
+
+sed -i '' "s#SCRIPT_PATH#$SCRIPTS_PATH#g" "$PLIST_PATH/boot-shutdown-script.plist"
+sed -i '' "s#LOG_PATH#$LOGS_PATH#g" "$PLIST_PATH/boot-shutdown-script.plist"
+
+echo "Installation completed"
+echo "Making a install Report"
+INSTALL_LOG="/Library/Logs/boot-shutdown-script-install.log"
+if [ ! -f "$INSTALL_LOG" ];then
+touch $INSTALL_LOG
+fi
+echo ""
+echo "######################################################" > $INSTALL_LOG
+echo "Boot-shutdown-Install-report"  >> $INSTALL_LOG
+echo "######################################################" >> $INSTALL_LOG
+echo "" >> $INSTALL_LOG
+echo "`date "+%Y-%m-%d %H:%M:%S"` $SUDO_USER Installed macosx-script-boot-shutdown" >> $INSTALL_LOG
+echo "" >> $INSTALL_LOG
+echo "" >> $INSTALL_LOG
+echo "Install Locations" >> $INSTALL_LOG
+echo "" >> $INSTALL_LOG
+echo "GIT_REPO_DIR = $GIT_REPO_DIR" >> $INSTALL_LOG
+echo "PLIST_PATH = $PLIST_PATH" >> $INSTALL_LOG
+echo "SCRIPTS_PATH = $SCRIPTS_PATH" >> $INSTALL_LOG
+echo "LOGS_PATH = $LOGS_PATH" >> $INSTALL_LOG
+echo "" >> $INSTALL_LOG
+echo "#################################################################" >> $INSTALL_LOG
+echo "macosx-script-boot-shutdown INSTALLED" >> $INSTALL_LOG
+echo "#################################################################" >> $INSTALL_LOG
+echo "" >> $INSTALL_LOG
+echo ""
+echo "#################################################################"
+echo "$INSTALL_LOG is completed"
+echo "#################################################################"
+if [ -f "$PLIST_PATH/boot-shutdown-script.plist" ];then
+  launchctl load -w $PLIST_PATH/boot-shutdown-script.plist
+  echo ""
+  echo "###########################################################################################################"
+  echo "### Boot shutdown Service is Installed and Loaded"
+  echo "### You can add commands or scripts to $SCRIPTS_PATH/boot-shutdown.sh"
+  echo "### Do not Forget to unload and reload the service after a change"
+  echo "### To unload type: sudo launchctl unload -w $PLIST_PATH/boot-shutdown-script.plist "
+  echo "### To load type: sudo launchctl load -w $PLIST_PATH/boot-shutdown-script.plist "
+  echo "### Alternatively reboot two times to see the effects of the change."
+  echo "###########################################################################################################"
+  rmgitrepo
+else
+  echo ""
+  echo "###############################################################"
+  echo "### Could not find the service due to a unknown error "
+  echo "### !!! Installation failed !!!"
+  echo "###############################################################"
+fi
+
+
+
+
+
+
+
+
+
+
+