diff --git a/Makefile b/Makefile
index 77a1830..5be679a 100644
--- a/Makefile
+++ b/Makefile
@@ -17,7 +17,10 @@ LIBS = -lboost_regex
 
 
 SOURCE = ./src/main.cpp
-OBJECTS =  main.o TexDocElement.o TexParser.o
+OBJECTS =  main.o \
+PrintElementTree.o \
+TexDocElement.o \
+TexParser.o
 
 
 
@@ -54,6 +57,9 @@ TexParser.o: ./src/TexParser.cpp
 TexDocElement.o: ./src/TexDocElement.cpp
 	$(CC) $(CPPFLAGS)  -o $@ -c $^ $(LIBS)
 
+PrintElementTree.o: ./src/PrintElementTree.cpp
+	$(CC) $(CPPFLAGS)  -o $@ -c $^ $(LIBS)
+
 # cleaning the build-tmp-files
 clean:
 	#rm -f *.rpm
@@ -100,7 +106,9 @@ uninstall:
 
 # simple function check of bin-file.
 bin-test:
-	./texconv --input=./testfiles/simple_tex_document.tex --output=./muell.html
+	./texconv --help
+	./texconv pars --input=./testfiles/simple_tex_document.tex --output=./muell.html
+	./texconv doctree --input=./testfiles/simple_tex_document.tex 
 
 bin-gdb:
 	gdb ./texconv
diff --git a/src/PrintElementTree.cpp b/src/PrintElementTree.cpp
new file mode 100644
index 0000000..8cc8b25
--- /dev/null
+++ b/src/PrintElementTree.cpp
@@ -0,0 +1,19 @@
+
+#include <iostream>
+#include <string>
+
+#include "PrintElementTree.h"
+#include "TexDocElement.h"
+
+/** get debugging info */
+#define DBINF  cout << "[debug]"
+
+
+using namespace std;
+
+void PrintElementTree::printTree( TexDocElement& parentElement )
+{
+DBINF "######### Starte mit PrintElementTree::printTree ############" << std::endl;
+
+
+}
\ No newline at end of file
diff --git a/src/PrintElementTree.h b/src/PrintElementTree.h
new file mode 100644
index 0000000..8c66ab7
--- /dev/null
+++ b/src/PrintElementTree.h
@@ -0,0 +1,16 @@
+#ifndef PRINTELEMETTREE_H
+#define PRINTELEMETTREE_H
+
+
+#include <string>
+#include <list>
+
+#include "TexDocElement.h"
+
+class PrintElementTree
+{
+public:
+    static void printTree( TexDocElement& parentElement );
+};
+
+#endif   
\ No newline at end of file
diff --git a/src/TexParser.cpp b/src/TexParser.cpp
index 303927a..d7c0e25 100644
--- a/src/TexParser.cpp
+++ b/src/TexParser.cpp
@@ -4,14 +4,14 @@
 #include <string>
 #include <boost/regex.hpp>
 
-using namespace std;
-
 #include "TexParser.h"
 #include "TexDocElement.h"
 
 /** get debugging info */
 #define DBINF  cout << "[debug]"
 
+using namespace std;
+
 
 // B =========================================================================
 
@@ -289,6 +289,12 @@ DBINF << "TexParser::DOCUMENT gefunden!\n";
     throw;    
 }
 
+
+TexDocElement& TexParser::getRootElement(void)
+{
+    return TexParser::rootElement;
+}
+
 // P =========================================================================
 
 void TexParser::pars()
diff --git a/src/TexParser.h b/src/TexParser.h
index 07a5036..874528c 100644
--- a/src/TexParser.h
+++ b/src/TexParser.h
@@ -20,6 +20,12 @@ class TexParser
     */
     void setInputFileName(std::string);
 
+    /**
+    * Get back the rootElement.
+    * @return The root elemet.
+    */
+    TexDocElement& getRootElement(void);
+
 private:
 
     // Properties ------------------------------------------------------------
diff --git a/src/main.cpp b/src/main.cpp
index a0c84d5..0a85277 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -3,19 +3,24 @@
 #include "TexParser.h"
 #include <string>
 #include <iostream>
+
+#include "PrintElementTree.h"
 #include "TexParser.h"
 
 /** get debugging info */
-#define DBINF  std::cout << "[debug]"
+#define DBINF  cout << "[debug]"
+
+using namespace std;
 
 void get_help(void)
 {
-    std::cout << "\n--help" << std::endl;
-    std::cout << "\t\t Help text." << std::endl;
-    std::cout << "\n--input=[file name]" << std::endl;
-    std::cout << "\t\t Name of input file." << std::endl;
-    std::cout << "\n--output=[file name]" << std::endl;
-    std::cout << "\t\t Name of output file." << std::endl;
+    cout << "\ntexconv [pars|doctree|--help] --output=[file name] " << endl;
+    cout << "\n--help" << endl;
+    cout << "\t\t Help text." << endl;
+    cout << "\n--input=[file name]" << endl;
+    cout << "\t\t Name of input file." << endl;
+    cout << "\n--output=[file name]" << endl;
+    cout << "\t\t Name of output file." << endl;
 
 
 }
@@ -28,16 +33,30 @@ int main(int argc,char *argv[])
     imputFileName="";
     std::string outputFileName;
     outputFileName="";
+    string do_command = "";
 
 
     for ( int i = 1; i < argc; i++)
     {
-//         std::cout << argv[i] << std::endl;
         str_arg = std::string(argv[i]);
-        found = str_arg.find("--help");
-        if (found!=std::string::npos)
+// DBINF << "Arg Nr.: " << i << " Wert: " << argv[i] << endl;
+
+        if(i == 1)
         {
-            get_help();
+            if (str_arg == "--help")
+            {
+                get_help();
+                return 0;
+            }
+            if (str_arg == "pars")
+            {
+                do_command = str_arg;
+            }
+            if (str_arg == "doctree")
+            {
+                do_command = str_arg;
+            }
+
         }
         found = str_arg.find("--input=");
         if (found!=std::string::npos)
@@ -50,27 +69,43 @@ int main(int argc,char *argv[])
         {
             size_t endIdentifier = std::string("--output=").length();
             outputFileName = str_arg.substr( endIdentifier );
-        }        
-
-
+        }
+    } // end for-loop
+    
+    if( do_command == "")
+    {
+        cout << "No supported command found!" << endl;
+        return 1;
     }
+    
+
 
     if( imputFileName == "" )
     {
-        std::cout << "Name of input file is not set!" << std::endl;
+        cout << "Name of input file is not set!" << endl;
         return 1;
     }
-    if( outputFileName == "" )
+    if( do_command == "doctree")
     {
-        std::cout << "Name of output file is not set!" << std::endl;
-        return 1;
+        TexParser texParser;
+        texParser.setInputFileName(imputFileName);
+        texParser.pars();
+        PrintElementTree::printTree( texParser.getRootElement() );
+        return 0;
+    }
+    if( do_command == "pars")
+    {    
+        if( outputFileName == "" )
+        {
+            cout << "Name of output file is not set!" << endl;
+            return 1;
+        }
+DBINF << "convert " << imputFileName << " to " << outputFileName << endl;
+        TexParser texParser;
+        texParser.setInputFileName(imputFileName);
+        texParser.pars();
+        return 0;
     }
-DBINF << "convert " << imputFileName << " to " << outputFileName << std::endl;
-    TexParser texParser;
-    texParser.setInputFileName(imputFileName);
-    texParser.pars();
-    
-    return 0;
 }