diff --git a/EOPSY/task1/.modify.sh.swp b/EOPSY/task1/.modify.sh.swp
deleted file mode 100644
index 124be954..00000000
Binary files a/EOPSY/task1/.modify.sh.swp and /dev/null differ
diff --git a/EOPSY/task1/bigletters/bigger/lol b/EOPSY/task1/bigletters/bigger/lol
deleted file mode 100644
index e69de29b..00000000
diff --git a/EOPSY/task1/bigletters/lol b/EOPSY/task1/bigletters/lol
deleted file mode 100644
index e69de29b..00000000
diff --git a/EOPSY/task1/modify.sh b/EOPSY/task1/modify.sh
index da0e664b..28444283 100755
--- a/EOPSY/task1/modify.sh
+++ b/EOPSY/task1/modify.sh
@@ -3,7 +3,6 @@
 # simple version
 
 # the name of the script without a path
-name=`basename $0`
 
 help()
 {
@@ -26,6 +25,15 @@ uppercase()
                 error_msg "missing filename for -u"
                 exit 1
         fi
+	if test -f "$1"
+        then
+                if test -d "$1"
+                then
+                        error_msg "$1 is neither a file nor folder"
+                        exit 3
+                fi
+        fi
+
 	mv "$1" $(echo "$1" | sed -r -e 's/.*/\U&/');
 
 		
@@ -62,8 +70,15 @@ sneed()
 		error_msg "missing sed filename"
 		exit 2
 	fi
-	echo "$1"
-	echo $1
+    	if test -f "$2"
+        then
+                if test -d "$2"
+                then
+                        error_msg "$2 is neither a file nor folder"
+                        exit 3
+                fi
+        fi
+
 	mv "$2" $(echo "$2" | sed $1)
 }
 
@@ -80,24 +95,30 @@ recursionSneed()
 		error_msg "missing sed filename"
 		exit 2
 	fi
-	
-	if test -d "$2"
-        then
-        sneed "$1" "$2"
-        cd "$2"
-        for file in *
+
+	if test -f "$2"
+	then
+		if test -d "$2"
+		then
+			error_msg "$2 is neither a file or folder"
+			exit 3
+		fi
+	fi
+	filename="$2"
+	sneed "$1" "$filename" 
+	filename="$(echo "$filename" | sed $1)"
+	echo $filename
+        for item in "$filename"/*
         do
-                recursionSneed "$1" "$file"
+                if test -d "$item"
+                then
+                        recursionSneed "$1" "$item"
+                fi
+                if test -f "$item"
+                then
+                        sneed "$1" "$item" 
+                fi
         done
-        fi
-
-        if test -f "$2"
-        then
-        sneed "$1" "$2"
-        fi
-
-
-
 }
 
 recursionLowercase()
@@ -120,7 +141,7 @@ recursionLowercase()
 recursionUppercase()
 {
 	uppercase "$1"
-        set "$(echo "$1" | sed -r -e 's/.*/\L&/')"
+        set "$(echo "$1" | sed -r -e 's/.*/\U&/')"
         for item in "$1"/*
         do
                 if test -d "$item"
@@ -158,7 +179,6 @@ error_msg()
         echo "$name: error: $1" 1>&2 
 }
 
-# function for servicing -w option
 
 
 # if no arguments given
@@ -169,17 +189,13 @@ fi
 
 
 # do with command line arguments
-while test "x$1" != "x"
-do
-        case "$1" in
-                -h|--help) help;;
-                -l|--lowercase) lowercase "$2";;
-		-r|--recursion) recursion "$2" "$3" ;;
-		-u|--upercase) uppercase "$2";;
-		*) sneed "$1" "$2" ;;
-        esac
-        shift
-done
+case "$1" in
+	-h|--help) help;;
+	-l|--lowercase) lowercase "$2";;
+	-r|--recursion) recursion "$2" "$3" ;;
+	-u|--upercase) uppercase "$2";;
+	*) sneed "$1" "$2" ;;
+esac
 
 
 
diff --git a/EOPSY/task1/modify_examples.sh b/EOPSY/task1/modify_examples.sh
old mode 100644
new mode 100755
index e69de29b..6760f089
--- a/EOPSY/task1/modify_examples.sh
+++ b/EOPSY/task1/modify_examples.sh
@@ -0,0 +1,77 @@
+#!/bin/bash
+
+touch a
+touch B
+touch SED
+mkdir foldera
+mkdir FOLDERB
+mkdir FOLDERSED
+mkdir upperfoldermain
+cd upperfoldermain
+touch upperfilesub
+mkdir upperfoldersub
+cd upperfoldersub
+touch upperfilesubsub
+cd ..
+cd ..
+
+
+mkdir LOWERCASEFOLDERMAIN 
+cd LOWERCASEFOLDERMAIN
+touch LOWERFILESUB
+mkdir LOWERFOLDERSUB
+cd LOWERFOLDERSUB
+touch LOWERFILESUBSUB
+cd ..
+cd ..
+
+mkdir SEDLOWERCASEFOLDERMAIN
+cd SEDLOWERCASEFOLDERMAIN
+touch SEDLOWERFILESUB
+mkdir SEDLOWERFOLDERSUB
+cd SEDLOWERFOLDERSUB
+touch SEDLOWERFILESUBSUB
+cd ..
+cd ..
+
+touch recursefile
+touch RECURSELOWERFILE
+touch SEDRECURSEFILE
+
+
+
+echo "Typical scenarios"
+echo "Uppercasing file with filename a"
+echo "Lowercasing file with filename B"
+echo "Using sed pattern for lowercasing of file with filename SED"
+echo "Uppercasing folder with name foldera non recursively"
+echo "Lowercasing folder with name FOLDERB non recursively"
+echo "Using sed pattern for lowercasing of folder with name FOLDERSED non recursively"
+
+echo "Uppercasing folder recursively"
+echo "Main folder name: upperfoldermain"
+echo "folder contains: folder named upperfoldersub , file named upperfilesub"
+echo "subfolder upperfoldersub contains file named upperfilesubsub"
+
+echo "Lowercasing folder recursively"
+echo "Main folder name: LOWERFOLDERMAIN"
+echo "folder contains: folder named LOWERFOLDERSUB , file named LOWERFILESUB"
+echo "subfolder LOWERFOLDERSUB contains file named LOWERFILESUBSUB"
+
+echo "using sed pattern for Lowercasing folder recursively"
+echo "Main folder name: SEDLOWERFOLDERMAIN"
+echo "folder contains: folder named SEDLOWERFOLDERSUB , file named SEDLOWERFILESUB"
+echo "subfolder SEDLOWERFOLDERSUB contains file named SEDLOWERFILESUBSUB"
+
+echo "Uncommon scenarios"
+echo "uppercasing recursively normal file recursefile"
+echo "lowercasing recursively normal file RECURSELOWERFILE"
+echo "using sed pattern recursively for normal file to lowercase it SEDRECURSEFILE"
+
+echo "Incorrect scenarios"
+echo "not providing enough arguments"
+echo "not providing file"
+echo "not providing argument for recursion"
+echo "provding filename/foldername for file/folder which does not exist"
+
+