wget http://ftp.gnu.org/gnu/wdiff/wdiff-latest.tar.gz
tar xvzf wdiff-latest.tar.gz
cd wdiff-x-x-x
yum install texinfo
./configure
make
make install
You should now have a wdiff binary at /usr/local/bin/wdiff
Show differences
wdiff file1 file2
Show stats
wdiff-3 -s file1 file2