From manpage of
This is equivalent to
-rlptgoD. It is a quick way of saying you want recursion and want to preserve almost everything (with -H being a notable omission). The only exception to the above equivalenceis when --files-from is specified, in which case -r is not implied.
Note that -a does not preserve hardlinks, because finding multiply-linked files is expensive. You must separately specify -H.
What is the closest for
rsync -a, in terms of input and result of file copy, ignoring transfer speed?
cp -arl miss compare to
rsync -a? Only
cp -arl behave the same as
rsync -a except those aspects it misses?