How do i Get return value (0/1) after comparing the two Files using 'cmp' Command ??

[xtremebass]

Hi Bytes..

In Linux, How can i get return value of comparing two files using the command cmp in the prompt.. when i was tried, it shows only output of unmatched lines(differ line )/ shows nothing if two file are same. please do help..

Thanks.

[ashitpro]

This should work for you...

if cmp a1.txt b1.txt > /dev/null
then
        echo "Files are same..."
else
        echo "Files are different..."
fi