diff --git a/version0.2/nasal_interpreter.cpp b/version0.2/nasal_interpreter.cpp
deleted file mode 100644
index a3ed766..0000000
--- a/version0.2/nasal_interpreter.cpp
+++ /dev/null
@@ -1,54 +0,0 @@
-#include <iostream>
-#include <cstring>
-#include <cstdlib>
-#include "nasal.h"
-
-int main()
-{
-	std::string command;
-	std::cout<<">> input \"help\" to find help."<<std::endl;
-	while(1)
-	{
-		std::cout<<">> ";
-		std::getline(std::cin,command);
-		if(command=="help")
-		{
-			std::cout<<">> 1. input file name to run the nasal script."<<std::endl;
-			std::cout<<">> 2. command cls to clear the screen."<<std::endl;
-			std::cout<<">> 3. command exit to shut down the program."<<std::endl;
-			std::cout<<">> 4. command lexer to see tokens in stack."<<std::endl;
-			std::cout<<">> 5. command del to delete all elements in stack."<<std::endl;
-			std::cout<<">> 6. command run to run the programme in stack."<<std::endl;
-			std::cout<<">> 7. command rs to check the source program."<<std::endl;
-		}
-		else if(command=="cls")
-		{
-			system("cls");
-			//linux system("clear");
-			//macOS system("clear");
-		}
-		else if(command=="rs")
-			nasal::PrintSourceFile();
-		else if(command=="exit")
-		{
-			break;
-		}
-		else if(command=="lexer")
-			nasal::nasal_lexer.print();
-		else if(command=="del")
-		{
-			nasal::nasal_lexer.delete_all();
-			nasal::nasal_var_stack.delete_all();
-			nasal::nasal_func_stack.delete_all();
-		}
-		else if(command=="run")
-		{
-			nasal::nasal_var_stack.delete_all();
-			nasal::nasal_func_stack.delete_all();
-			nasal::nasal_parse.total_run(nasal::nasal_lexer);
-		}
-		else
-			nasal::RunProcess(command);
-	}
-	return 0;
-}