File Size Comparison Script HELP PLEASE!!!

[Obi-Won-Knewbie]

I am new at scripting and need help developing a script that will look at a diff file size I've created from the original file and compare the size to the orignal and send a return code of 1 to the /etc/notify if the file is less than 6-% of its original size.

Basically:

If diff_file < 60% of original_file
send return code 1 to start paging.
else
send return code 0 to stop paging

[Rubberman]

You can get the size of a file in bytes with this shell command:

wc -c <filename

You can then take that value and compare it with the original size, which I assume you have saved somewhere, and calculate the % difference.