I'm trying to write a script that simplify the use of grep utility. these are the option that I'd like to use with the script " -c -i -l -n -v". When I execute the script none of these option works. I really appreciate any idea or tips regarding this problem. here the code


echo " Enter 1-7:"
read menu
echo

case "$menu" in

1|1)
echo " enter what to grep:"
read what
echo " enter the files that contains what you want to grep:"
read afile
if [ $? != 0 ]
then
echo " it does not exist "
else
cat $afile | grep -c "$what"
fi
echo "please press enter to continue"
read continue
grepscript
exit

;;

2|2)

echo " enter what to grep:"
read what
echo " enter the files that contains what you want to grep:"
read afile
if [ $? != 0 ]
then
echo " it does not exist "
else
cat $afile | grep -i "$what"
fi
echo "please press enter to continue"
read continue
grepscript
exit

;;

3|3)

echo " enter what to grep:"
read what
echo " enter the files that contains what you want to grep:"
read afile
if [ $? != 0 ]
then
echo " it does not exist "
else
cat $afile | grep -l "$what"
fi
echo "please press enter to continue"
read continue
grepscript
exit

;;


4|4)

echo " enter what to grep:"
read what
echo " enter the files that contains what you want to grep:"
read afile
if [ $? != 0 ]
then
echo " it does not exist "
else
cat $afile | grep -n "$what"
fi
echo "please press enter to continue"
read continue
grepscript
exit

;;



5|5)

echo " enter what to grep:"
read what
echo " enter the files that contains what you want to grep:"
read afile
if [ $? != 0 ]
then
echo " it does not exist "
else
cat $afile | grep -v "$what"
fi
echo "please press enter to continue"
read continue
grepscript
exit

;;


6|6)

echo " the content of your directory are"
ls
echo "please press enter to continue"
read continue
grepscript
exit
;;


7|7)

# quit the system
echo " quiting grep "

exit
;;


esac # end case
done # end loop