[Linux] Diff two directory on vi

http://www.vim.org/scripts/script.php?script_id=102

DirDiff.vim : A plugin to diff and merge two directories recursively. 

 Usage:   <Enter>/'o'=open,'s'=sync,'\dj'=next,'\dk'=prev, 'q'=quit

 Options: 'u'=update,'x'=set excludes,'i'=set ignore,'a'=set args

 Diff Args: -r --brief -x".svn" -x"CVS" -x"*.class" -x"*.exe" -x".*.swp"