Restore batch file as much as possible

Signed-off-by: Peter Nied <[email protected]>

tools/install_demo_configuration.bat

@@ -323,6 +323,7 @@ echo plugins.security.system_indices.indices: [".plugins-ml-config", ".plugins-m
 setlocal enabledelayedexpansion
 
 set "ADMIN_PASSWORD_FILE=%OPENSEARCH_CONF_DIR%opensearch-security\initialAdminPassword.txt"
+set "INTERNAL_USERS_FILE=%OPENSEARCH_CONF_DIR%opensearch-security\internal_users.yml"
 
 if "%initialAdminPassword%" NEQ "" (
   set "ADMIN_PASSWORD=!initialAdminPassword!"
@@ -335,6 +336,8 @@ if not defined ADMIN_PASSWORD (
   exit /b 1
 )
 
+echo "   ***   ADMIN PASSWORD SET TO: $ADMIN_PASSWORD    ***"
+
 set "HASH_SCRIPT=%OPENSEARCH_PLUGINS_DIR%\opensearch-security\tools\hash.bat"
 
 REM Run the command and capture its output
@@ -347,10 +350,13 @@ if errorlevel 1 (
   exit /b 1
 )
 
+echo Clear the ADMIN_PASSWORD variable
+set "ADMIN_PASSWORD="
+
 set "default_line=  hash: "$2a$12$VcCDgh2NDk07JGN0rjGbM.Ad41qVR/YFJcgHp0UGns5JDymv..TOG""
+
 set "search=%default_line%"
 set "replace=  hash: "%HASHED_ADMIN_PASSWORD%""
-set "INTERNAL_USERS_FILE=%OPENSEARCH_CONF_DIR%opensearch-security\internal_users.yml"
 
 setlocal enableextensions
 for /f "delims=" %%i in ('type "%INTERNAL_USERS_FILE%" ^& break ^> "%INTERNAL_USERS_FILE%" ') do (