I am trying to read in 2 values from user input prompt, and if the second value is less than the first, I would like to re-prompt the user for value 2. I can't seem to get my statements to work correctly!
they are like:

echo "Enter low div: \c"
read div1

echo "Enter high div: \c"
read div2

if [ $div1 > $div2 ]
then
echo "high div is less than low div!!!"
echo "Please reenter high div: \c"
read div2
fi

The comparison always fails, no matter if the second value is larger than the first value! Any help would be appreciated! Thanks
John K

#!/bin/sh
var1=10
var2=20
if [ $var1 -lt $var2 ] ; then
ans=`expr $var2 - $var1`
else
echo "Error"
fi
echo "Answer $ans"

Here it is in Korn shell syntax:

integer low high

while ! (( low high ))
do
read low?"Enter a number: "
read high?"Enter a higher number: "

(( low high )) || print -u2 "No, ${high} is not higher than ${low}. Please re-enter."
done

print Low: $low
print High: $high

Messageboard swallowed the less-than characters. That should be:

integer low high

while ! (( low high ))
do
read low?"Enter a number: "
read high?"Enter a higher number: "

(( low high )) || print -u2 "No, ${high} is not higher than ${low}. Please re-enter."
done

print Low: ${low}
print High: ${high}

...still no luck. Maybe this will do it:
(if not, there should be a 'less-than' symbol between 'low' and 'high' in the two conditions):

integer low high

while ! (( low \< high ))
do
read low?"Enter a number: "
read high?"Enter a higher number: "

(( low \< high )) || print -u2 "No, ${high} is not higher than ${low}. Please re-enter."
done

print Low: ${low}
print High: ${high}