Help with script

[trintukaz]

#!/bin/bash

echo type first file name
read x
echo type second file name
read y
a=$(stat -c%s $x)
b=$(stat -c%s $y)
if '[' "$a" -gt "$b" ']'
then
echo "File $x larger "
elif  '[' "$b" -gt "$a" ']'
then
echo "File $y larger "
else
echo "Both files are equal"
fi

This is script which compares file sizes and shows which is bigger. The question is. How i can make script search for files in whole hard disk not only in directory in which i work.

[Roxoff]

Sorry, but as you've already had pointed out to you, homework questions are not allowed. You perhaps want to take a look at the man page for the 'find' command, or ask your tutor.