[ale] diff on 2 directories

[Jim Lynch]

Chris Fowler wrote:
> Are there any good tools to do a diff on two directory trees?  I'm doing 
> an upgrade and there are many perl programs spread throughout and I want 
> to see the differences.  I've used the diff program before but these 
> trees are big and there will be a lot of noise.  There are binary files 
> as well as text files.
>
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Don't know of any tools off hand, but that's a slightly harder than 
trivial perl program.

Jim.