diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..83bad14
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2016 Arie Kurniawan
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/README.md b/README.md
index e40818c..dba02cf 100644
--- a/README.md
+++ b/README.md
@@ -46,3 +46,10 @@ Please keep in mind that the current code expects the common geoJSON format with
     }
   ]
 }
+
+## how to use
+
+`$python3 geojson2shp -i /location/of/your/file.geojson`
+
+## output
+> file.shp, file.shx, file.dbf, file.prj
diff --git a/input/lines.geojson b/example/lines.geojson
similarity index 99%
rename from input/lines.geojson
rename to example/lines.geojson
index ca43554..03fe41b 100644
--- a/input/lines.geojson
+++ b/example/lines.geojson
@@ -62,4 +62,4 @@
       }
     }
   ]
-}
\ No newline at end of file
+}
diff --git a/input/points.geojson b/example/points.geojson
similarity index 99%
rename from input/points.geojson
rename to example/points.geojson
index e55852d..faf334e 100644
--- a/input/points.geojson
+++ b/example/points.geojson
@@ -41,4 +41,4 @@
       }
     }
   ]
-}
\ No newline at end of file
+}
diff --git a/input/polys.geojson b/example/polys.geojson
similarity index 99%
rename from input/polys.geojson
rename to example/polys.geojson
index 82729be..848fc7d 100644
--- a/input/polys.geojson
+++ b/example/polys.geojson
@@ -206,4 +206,4 @@
       }
     }
   ]
-}
\ No newline at end of file
+}
diff --git a/geoJ.py b/geojson2shp.py
similarity index 88%
rename from geoJ.py
rename to geojson2shp.py
index c7f3d3c..c94cc07 100644
--- a/geoJ.py
+++ b/geojson2shp.py
@@ -1,7 +1,11 @@
-# The json module is needed to load the geoJSON file
 import json
-# The shapefile, from pyshp, is needed to construct the shapefile object
-import shapefile
+import shapefile # The shapefile, from pyshp, is needed to construct the shapefile object
+import argparse
+
+parser = argparse.ArgumentParser()
+parser.add_argument("-i", type=str, required=True, dest='input',help='location of geojson file [ex: /path/to/file.geojson]')
+#parser.add_argument("-o", type=str, required=True, dest='output',help='ouput location  [ex: /path/to/outputname]')
+args = parser.parse_args()
 
 class GeoJ:
 
@@ -19,7 +23,7 @@ def __init__(self, geoJFile):
         try:
             self.geoJFile = open(geoJFile)
         except IOError:
-            print "Error: can not find file. Make sure the file name and path are correct"
+            print("Error: can not find file. Make sure the file name and path are correct")
         else:
             try:
                 self.geoJObj = json.load(self.geoJFile)
@@ -125,9 +129,8 @@ def __createPrjFile(self, shpFile):
 ##########################
 
 if __name__ == '__main__':
-
     # Create an object from the GeoJ class
-    gJ = GeoJ('input/lines.geojson')
+    gJ = GeoJ(args.input)
     
     # Creating a shapefile from the geoJSON object
-    gJ.toShp('output/lines')
+    gJ.toShp(args.input)
diff --git a/output/log.txt b/output/log.txt
deleted file mode 100644
index 53a90bf..0000000
--- a/output/log.txt
+++ /dev/null
@@ -1 +0,0 @@
-Empty