Shell Programming and Scripting

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

First) You need to better define your options. Second) The case statement is a simplified version of the if statement. Get rid of your if statements. Use the example below to customize your script.
Good luck!

$ cat tvprogram
echo "
Monday) Dancing with the Stars
Tuesday) American Idol
Wednesday) Results of the shows
Thursday) The survivors
Friday) Jazz Concert
Saturday) Play Pool
Sunday) Church and watch games
Which program do you want to watch? \c"
read program
case "$program"
in
Monday) Dancing with the stars
;;
Tuesday) American Idol
;;
Wednesday) Results of the show
;;
Thursday) The survivors
;;
Friday) Jazz Concert
;;
Saturday) Play Pool
;;
Sunday) Church and watch games
;;
esac

I hope that helps.

thanks for the tips