[plug] I hate myself :( rm -r gone too far....

[Sol]

I wanted to destroy a no longer needed configuration 
directory /usr/local/etc/ .  A careless moment of stupidity caused me 
to do this:

localhost:/usr/local# rm -r /etc

Fortunately I ctrl-c after about 2 seconds and stopped this command 
from reaching it's completion. It seems on the surface that not much is 
lost. I have /etc backed up from about one month ago and most of it 
should be current. However, I don't want to just copy the backup over 
the damaged directory because I will lose whatever configuration I've 
done in the past month.

My question is after I unpack etc.tgz, how can I work out the 
differences between the files in the two directories so that I know 
which files need to be replaced?

Thankyou.
sol