High-Low game in Shell Script

I wrote the following code in Shell Script a few months ago for a programming tools class. I sent this code to a potential employer last week because I like how simple and organized it is. I just love shell scripting, anyway.

#Hailey Hanson
#October 30th, 2013
#Assignment 5:A high-low script

#this script should prompt the user to think of a number between 1 and 100
#the script will then make guesses about the number and the user will  tell the program if the guess is too high or too low

#initialize high, low and middle values
let h=100
let l=1
let g=$((( $h + $l ) / 2))

#ask questions. keep name
echo Please type your name
read name
echo Think of a number between 1 and 100
echo Is your number $g? If too high, enter h. If too low, enter l. If correct, enter c.

read text       #text will hold h, l or c
let sum=1       #initialization of total number of tries

for i in `seq 0 $sum`;  #to keep counter on sum
do
while [ $text != c ]; do        #so technically, if the user were to enter anything other than l or h, my code would treat it as if the user entered c.
#{
        if [ $text == h ] ; then        #if guess is too high, make high value half of its value-1, count sum.
                let h=$g-1
                let g=$((( $h + $l )/2))
                echo Is your number $g? If too high, enter h. If too low, enter l. If correct, enter c.
                read text
                let sum=$sum+1
                fi
        if [ $text == l ] ; then        #if guess is too low, make low value half of high value+1, count sum.
                let l=$g+1
                let g=$((( $h + $l )/2))
                echo Is your number $g? If too high, enter h. If too low, enter l. If correct, enter c.
                read text
                let sum=$sum+1
                fi
#}
done    #end of while loop
done    #end of for loop/sum counter

echo You number is $g! Thanks for playing, $name
echo It took me $sum tries to guess your number.
echo I\'m feeling extra savvy on this day, `date`

echo "On `date` It took $sum tries to guess $name's number.
" >> highlow.log