diff --git a/.gitignore b/.gitignore
old mode 100644
new mode 100755
diff --git a/LICENSE b/LICENSE
old mode 100644
new mode 100755
diff --git a/README.md b/README.md
old mode 100644
new mode 100755
index 0938e55..cf27bd6
--- a/README.md
+++ b/README.md
@@ -22,7 +22,7 @@ also divide the full map into small maps to increase the speed of execution or
 for many other purposes by providing more than one north, east, south, west
 values for each smaller map.  (You can refer example/DM1.txt)
     * bash contour.sh \<DATA set for generating map> \<File defining region for each map>
-    *  e.g. `bash contour.sh example/grassData.txt example/DM1.txt`
+    *  e.g. `bash contour.sh example/GrassData.txt example/DM1.txt`
 
 2. This script will generate RL points on given polyline (in form of CSV file in format *X,Y*  you can refer to example/road.csv)
     * bash road.sh \<Input file of points to generate profile > \<output file name>
diff --git a/TheRoad.py b/TheRoad.py
old mode 100644
new mode 100755
diff --git a/contour.sh b/contour.sh
index 4d63f27..2999996 100755
--- a/contour.sh
+++ b/contour.sh
@@ -19,7 +19,7 @@ v.build map=fieldData
 
 
 #Count numbers of regions to be created
-no_lines=$(cat $f2| wc -l)
+no_lines=$(cat $2| wc -l)
 
 echo $no_lines
 
@@ -28,14 +28,14 @@ echo $no_lines
     do
         
         #getting data from input file describing the region. 
-        data=$(awk "NR>=$i&&NR<=$i" $file)
+        data=$(awk "NR>=$i&&NR<=$i" $2)
         var1=$(echo $data | cut -d',' -f1)
         var2=$(echo $data | cut -d',' -f2)
         var3=$(echo $data | cut -d',' -f3)
         var4=$(echo $data | cut -d',' -f4)
         
         echo "next points"
-        echo "North: " $var1 " South: " $var2  " East: " $var2  " West: " $var2
+        echo "North: " $var1 " South: " $var2  " East: " $var3  " West: " $var4
         
         #name of new raster MAP
         elev_val="DTM$i"
@@ -50,5 +50,3 @@ echo $no_lines
         # Create raster map  
         r.contour --overwrite input=$elev_val output=$contour_val step=.5 cut=0
     done
-
-
diff --git a/example/DM1.txt b/example/DM1.txt
old mode 100644
new mode 100755
index 6d042e8..e9f644c
--- a/example/DM1.txt
+++ b/example/DM1.txt
@@ -1,4 +1,4 @@
-3423000,3424500,595250,596250  
-3421750,3422250,595000,596000
-3420500,3422000,594250,595250
+3423000,3421500,595250,594250  
+3421750,3420250,595000,594000
+3420500,3419000,594250,593250
 
diff --git a/example/GrassData.txt b/example/GrassData.txt
old mode 100644
new mode 100755
diff --git a/example/road.csv b/example/road.csv
old mode 100644
new mode 100755
diff --git a/plot.sage b/plot.sage
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new mode 100755
diff --git a/road.sh b/road.sh
old mode 100644
new mode 100755