# The trailing / matters. Does it matter on the source as well?
# I generally include it.
rsync -a mysite/doc_root/ mysite_test/doc_root/ # The trailing / matters.
Actually, I'm not sure to understand Greg's remark here.
In my opinion, trailing slash doesn't matter for destination folder on the contrary of *source* folder.
In other words, for me, the following are equal:
rsync -a mysite/doc_root/ mysite_test/doc_root/
rsync -a mysite/doc_root/ mysite_test/doc_root
But not the following:
rsync -a mysite/doc_root mysite_test/doc_root => you will get an extra "doc_root" folder (the source one) in your dest, i.e. : mysite_test/doc_root/doc_root and then the content of doc_root source
rsync -a mysite/doc_root/ mysite_test/doc_root => your doc_root (destination) folder will get doc_root content (source) directly