clear 
echo -e "enter file one : \c"
read fone

while [ -z "$fone" ] ;
do
echo -e "request :: please enter file name "
    echo -e "\n\tfile one : \c"
    read fone
done

if [ ! -e $fone ] ; then
    echo -e "error :: file one $fone doesn't exist. can't proceed."
    read empty
    exit 1
fi

echo -e "enter file two : \c"
read ftwo

while [ -z "$ftwo" ];
do
echo -e "request :: please enter file name "

    echo -e "\n\tfile two : \c"
    read ftwo
done

if [ ! -e $ftwo ] ; then
    echo -e " error :: file one $ftwo doesn't exist. can't proceed."
    read empty
    exit 1
fi

spell $fone $ftwo > spellerror.log
errword=`cat spellerror.log | wc -l`
echo -e "enter for continue"

echo -e "wrong spelling in both fiels : " 
cat spellerror.log
echo -e "total wrong words = $errword "
echo -e "\n enter for continue"
read empty

while [ $errword -gt 0 ] ;
do
    word=`sed -n "$errword p" spellerror.log `
    echo -e "word -> $word "

    echo -e "do u want update? (y/n) : \c "
    read choice

    if [ $choice = "y" -o $choice = "y" ]; then
        echo -e "new word : \c"
        read newword
    
        findfile=`grep -e $word -c $fone`
        if [ $findfile -gt 0 ]; then
        sed "s/$word/$newword/g" $fone > fone.tmp
            mv -f fone.tmp $fone
        fi
    
        findfile=`grep -e $word -c $ftwo`
        if [ $findfile -gt 0 ]; then
        sed "s/$word/$newword/g" $ftwo > ftwo.tmp
            mv -f ftwo.tmp $ftwo
        fi
    fi
    
    errword=`expr $errword - 1`

done    
 
OUTPUT
***********
[04mca58@LINTEL 04mca58]$ sh spell1.sh

enter  file one : 
f1

enter  file two : 
f2                           

enter forcontinue

                 wrong spelling:- 
ths
fle
chk
purps

 enter forcontinue                                                  

wrong word -> ths
do u want to update? (y/n) : y
new word : this

wrong word -> fle
do u want to update? (y/n) : y
new word : file

wrong word ->chk
do u want to update? (y/n) : y
new word : check

wrong word -> purps
do u want to update? (y/n) : y
new word : purpose