Write a script to make following file and directory management operations menu based: 1. Display current directory 2. List directory 3. Make directory 4. Change directory 5. Copy a file 6. Rename a file 7. Delete a file 8. Edit a file

echo " 1 : Display Current Directory"
echo " 2 : List directory"
echo " 3 : Make Directory"
echo " 4 : Change Directory"
echo " 5 : Copy a file"
echo " 6 : Rename a file"
echo " 7 : Delete a file"
echo " 8 : Edit a file"
echo " ENTER CHOICE : ";
read ch
if [ $ch -eq 1 ];then
echo "YOUR CHOICE IS TO DISPLAY CURRENT DIRECTORY"
pwd=`pwd`
echo "YOUR CURRENT DIRECTORY IS : $pwd"
elif [ $ch -eq 2 ];then
echo "YOUR CHOICE IS TO LIST THE FILE IN DIRECTORY"
echo "FILE AND DIRECTORIES IN CURRENT DIRECTORY IS "
echo `ls`
elif [ $ch -eq 3 ];then
echo "YOUR CHOICE IS TO CREATE DIRECTORY"
echo "Enter Name Of Directory:";
read dir
`mkdir $dir`
echo "Directory Created successfully";
elif [ $ch -eq 4 ];then
echo "YOUR CHOICE IS TO CHANGE DIRECTORY"
echo "ENTER DIRECTORY TO CHANGE"
read dir1
cd $dir1
echo "CHANGED SUCCESS "`pwd`
elif [ $ch -eq 5 ];then
echo "Enter file to COPY"
read file
echo "Enter Directory to which file is to be copied"
read dir
cp $file $dir
elif [ $ch -eq 6 ];then
echo "YOUR CHOICE IS TO RENAME A FILE"
echo "ENTER FILE TO RENAME"
read file
echo "ENTER NEW NAME"
read name
mv $file $name
elif [ $ch -eq 7 ];then
echo "YOUR CHOICE IS TO DELETE A FILE"
echo "ENTER FILE TO DELETE"
read file
rm -i $file
elif [ $ch -eq 8 ];then
echo "YOUR CHOICE IS TO EDIT A FILE"
echo "ENTER FILENAME TO EDIT "
read file
echo "ENTER NEW DATA TO WRITE"
read newdata
echo $newdata > $file
else
echo "ENTER CORRECT OPTION"
fi