On Monday, October 26, 2009, Kenneth Chiu wrote:
> cmp doesn't recurse, though, at least as far as I can tell.
> In theory, I could use find, then cmp, plus some scripting,
> but seems simpler to just write a small C program
> to do it.
Well, as a start, you could try this:
find "$src" -type f -print | while read f; do cmp "$f" "${f/$src/$dest}" ; done
The concatenation of its stdout and stderr will include
distinguishable lines enumerating the following sets:
all files in "$dest" that differ from the corresponding file in "$src"
all directories in "$dest" that correspond to files in "$src" and vice-versa
all pathnames under "$dest" that don't exist despite there being a
corresponding file under "$src"
Which seems to be all the information you were looking for. You can
then postprocess the output to format it however you like.
Nothing there screams C to me. Perl, maybe...
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